- 30 Jul, 2024 11 commits
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Dan Carpenter authored
This function has a nested loop. The problem is that both the inside and outside loop use the same variable as an iterator. I found this via static analysis so I'm not sure the impact. It could be that it loops forever or, more likely, the loop exits early. Fixes: 3a616b92 ("net: mvpp2: Add TX flow control support for jumbo frames") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/eaa8f403-7779-4d81-973d-a9ecddc0bf6f@stanley.mountainSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Alexandra Winter authored
iucv_sever_path() is called from process context and from bh context. iucv->path is used as indicator whether somebody else is taking care of severing the path (or it is already removed / never existed). This needs to be done with atomic compare and swap, otherwise there is a small window where iucv_sock_close() will try to work with a path that has already been severed and freed by iucv_callback_connrej() called by iucv_tasklet_fn(). Example: [452744.123844] Call Trace: [452744.123845] ([<0000001e87f03880>] 0x1e87f03880) [452744.123966] [<00000000d593001e>] iucv_path_sever+0x96/0x138 [452744.124330] [<000003ff801ddbca>] iucv_sever_path+0xc2/0xd0 [af_iucv] [452744.124336] [<000003ff801e01b6>] iucv_sock_close+0xa6/0x310 [af_iucv] [452744.124341] [<000003ff801e08cc>] iucv_sock_release+0x3c/0xd0 [af_iucv] [452744.124345] [<00000000d574794e>] __sock_release+0x5e/0xe8 [452744.124815] [<00000000d5747a0c>] sock_close+0x34/0x48 [452744.124820] [<00000000d5421642>] __fput+0xba/0x268 [452744.124826] [<00000000d51b382c>] task_work_run+0xbc/0xf0 [452744.124832] [<00000000d5145710>] do_notify_resume+0x88/0x90 [452744.124841] [<00000000d5978096>] system_call+0xe2/0x2c8 [452744.125319] Last Breaking-Event-Address: [452744.125321] [<00000000d5930018>] iucv_path_sever+0x90/0x138 [452744.125324] [452744.125325] Kernel panic - not syncing: Fatal exception in interrupt Note that bh_lock_sock() is not serializing the tasklet context against process context, because the check for sock_owned_by_user() and corresponding handling is missing. Ideas for a future clean-up patch: A) Correct usage of bh_lock_sock() in tasklet context, as described in Link: https://lore.kernel.org/netdev/1280155406.2899.407.camel@edumazet-laptop/ Re-enqueue, if needed. This may require adding return values to the tasklet functions and thus changes to all users of iucv. B) Change iucv tasklet into worker and use only lock_sock() in af_iucv. Fixes: 7d316b94 ("af_iucv: remove IUCV-pathes completely") Reviewed-by:
Halil Pasic <pasic@linux.ibm.com> Signed-off-by:
Alexandra Winter <wintera@linux.ibm.com> Link: https://patch.msgid.link/20240729122818.947756-1-wintera@linux.ibm.comSigned-off-by:
Paolo Abeni <pabeni@redhat.com>
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D. Wythe authored
Following syzbot repro crashes the kernel: socketpair(0x2, 0x1, 0x100, &(0x7f0000000140)) (fail_nth: 13) Fix this by not calling sk_common_release() from smc_create_clcsk(). Stack trace: socket: no more sockets ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 1 PID: 5092 at lib/refcount.c:28 refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 Modules linked in: CPU: 1 PID: 5092 Comm: syz-executor424 Not tainted 6.10.0-syzkaller-04483-g0be9ae54 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 Code: 80 f3 1f 8c e8 e7 69 a8 fc 90 0f 0b 90 90 eb 99 e8 cb 4f e6 fc c6 05 8a 8d e8 0a 01 90 48 c7 c7 e0 f3 1f 8c e8 c7 69 a8 fc 90 <0f> 0b 90 90 e9 76 ff ff ff e8 a8 4f e6 fc c6 05 64 8d e8 0a 01 90 RSP: 0018:ffffc900034cfcf0 EFLAGS: 00010246 RAX: 3b9fcde1c862f700 RBX: ffff888022918b80 RCX: ffff88807b39bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: ffffffff815878a2 R09: fffffbfff1c39d94 R10: dffffc0000000000 R11: fffffbfff1c39d94 R12: 00000000ffffffe9 R13: 1ffff11004523165 R14: ffff888022918b28 R15: ffff888022918b00 FS: 00005555870e7380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000140 CR3: 000000007582e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> inet_create+0xbaf/0xe70 __sock_create+0x490/0x920 net/socket.c:1571 sock_create net/socket.c:1622 [inline] __sys_socketpair+0x2ca/0x720 net/socket.c:1769 __do_sys_socketpair net/socket.c:1822 [inline] __se_sys_socketpair net/socket.c:1819 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1819 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbcb9259669 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffe931c6d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007fffe931c6f0 RCX: 00007fbcb9259669 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000002 R08: 00007fffe931c476 R09: 00000000000000a0 R10: 0000000020000140 R11: 0000000000000246 R12: 00007fffe931c6ec R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 </TASK> Link: https://lore.kernel.org/r/20240723175809.537291-1-edumazet@google.com/ Fixes: d25a92cc ("net/smc: Introduce IPPROTO_SMC") Reported-by:
syzbot <syzkaller@googlegroups.com> Signed-off-by:
D. Wythe <alibuda@linux.alibaba.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
Wenjia Zhang <wenjia@linux.ibm.com> Link: https://patch.msgid.link/1722224415-30999-1-git-send-email-alibuda@linux.alibaba.comSigned-off-by:
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Paolo Abeni authored
Matthieu Baerts says: ==================== mptcp: fix inconsistent backup usage In all the MPTCP backup related tests, the backup flag was set on one side, and the expected behaviour is to have both sides respecting this decision. That's also the "natural" way, and what the users seem to expect. On the scheduler side, only the 'backup' field was checked, which is supposed to be set only if the other peer flagged a subflow as backup. But in various places, this flag was also set when the local host flagged the subflow as backup, certainly to have the expected behaviour mentioned above. Patch 1 modifies the packet scheduler to check if the backup flag has been set on both directions, not to change its behaviour after having applied the following patches. That's what the default packet scheduler should have done since the beginning in v5.7. Patch 2 fixes the backup flag being mirrored on the MPJ+SYN+ACK by accident since its introduction in v5.7. Instead, the received and sent backup flags are properly distinguished in requests. Patch 3 stops setting the received backup flag as well when sending an MP_PRIO, something that was done since the MP_PRIO support in v5.12. Patch 4 adds related and missing MIB counters to be able to easily check if MP_JOIN are sent with a backup flag. Certainly because these counters were not there, the behaviour that is fixed by patches here was not properly verified. Patch 5 validates the previous patch by extending the MPTCP Join selftest. Patch 6 fixes the backup support in signal endpoints: if a signal endpoint had the backup flag, it was not set in the MPJ+SYN+ACK as expected. It was only set for ongoing connections, but not future ones as expected, since the introduction of the backup flag in endpoints in v5.10. Patch 7 validates the previous patch by extending the MPTCP Join selftest as well. Signed-off-by:
Matthieu Baerts (NGI0) <matttbe@kernel.org> --- Matthieu Baerts (NGI0) (7): mptcp: sched: check both directions for backup mptcp: distinguish rcv vs sent backup flag in requests mptcp: pm: only set request_bkup flag when sending MP_PRIO mptcp: mib: count MPJ with backup flag selftests: mptcp: join: validate backup in MPJ mptcp: pm: fix backup support in signal endpoints selftests: mptcp: join: check backup support in signal endp include/trace/events/mptcp.h | 2 +- net/mptcp/mib.c | 2 + net/mptcp/mib.h | 2 + net/mptcp/options.c | 2 +- net/mptcp/pm.c | 12 +++++ net/mptcp/pm_netlink.c | 19 ++++++- net/mptcp/pm_userspace.c | 18 +++++++ net/mptcp/protocol.c | 10 ++-- net/mptcp/protocol.h | 4 ++ net/mptcp/subflow.c | 10 ++++ tools/testing/selftests/net/mptcp/mptcp_join.sh | 72 ++++++++++++++++++++----- 11 files changed, 132 insertions(+), 21 deletions(-) ==================== Link: https://patch.msgid.link/20240727-upstream-net-20240727-mptcp-backup-signal-v1-0-f50b31604cf1@kernel.orgSigned-off-by:
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Matthieu Baerts (NGI0) authored
Before the previous commit, 'signal' endpoints with the 'backup' flag were ignored when sending the MP_JOIN. The MPTCP Join selftest has then been modified to validate this case: the "single address, backup" test, is now validating the MP_JOIN with a backup flag as it is what we expect it to do with such name. The previous version has been kept, but renamed to "single address, switch to backup" to avoid confusions. The "single address with port, backup" test is also now validating the MPJ with a backup flag, which makes more sense than checking the switch to backup with an MP_PRIO. The "mpc backup both sides" test is now validating that the backup flag is also set in MP_JOIN from and to the addresses used in the initial subflow, using the special ID 0. The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it validates the previous fix for an issue introduced by this commit ID. Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows") Cc: stable@vger.kernel.org Reviewed-by:
Mat Martineau <martineau@kernel.org> Signed-off-by:
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Matthieu Baerts (NGI0) authored
There was a support for signal endpoints, but only when the endpoint's flag was changed during a connection. If an endpoint with the signal and backup was already present, the MP_JOIN reply was not containing the backup flag as expected. That's confusing to have this inconsistent behaviour. On the other hand, the infrastructure to set the backup flag in the SYN + ACK + MP_JOIN was already there, it was just never set before. Now when requesting the local ID from the path-manager, the backup status is also requested. Note that when the userspace PM is used, the backup flag can be set if the local address was already used before with a backup flag, e.g. if the address was announced with the 'backup' flag, or a subflow was created with the 'backup' flag. Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows") Cc: stable@vger.kernel.org Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/507Reviewed-by:
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Matthieu Baerts (NGI0) authored
A peer can notify the other one that a subflow has to be treated as "backup" by two different ways: either by sending a dedicated MP_PRIO notification, or by setting the backup flag in the MP_JOIN handshake. The selftests were previously monitoring the former, but not the latter. This is what is now done here by looking at these new MIB counters when validating the 'backup' cases: MPTcpExtMPJoinSynBackupRx MPTcpExtMPJoinSynAckBackupRx The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it will help to validate a new fix for an issue introduced by this commit ID. Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows") Cc: stable@vger.kernel.org Reviewed-by:
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Matthieu Baerts (NGI0) authored
Without such counters, it is difficult to easily debug issues with MPJ not having the backup flags on production servers. This is not strictly a fix, but it eases to validate the following patches without requiring to take packet traces, to query ongoing connections with Netlink with admin permissions, or to guess by looking at the behaviour of the packet scheduler. Also, the modification is self contained, isolated, well controlled, and the increments are done just after others, there from the beginning. It looks then safe, and helpful to backport this. Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows") Cc: stable@vger.kernel.org Reviewed-by:
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Matthieu Baerts (NGI0) authored
The 'backup' flag from mptcp_subflow_context structure is supposed to be set only when the other peer flagged a subflow as backup, not the opposite. Fixes: 06706542 ("mptcp: add the outgoing MP_PRIO support") Cc: stable@vger.kernel.org Reviewed-by:
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Matthieu Baerts (NGI0) authored
When sending an MP_JOIN + SYN + ACK, it is possible to mark the subflow as 'backup' by setting the flag with the same name. Before this patch, the backup was set if the other peer set it in its MP_JOIN + SYN request. It is not correct: the backup flag should be set in the MPJ+SYN+ACK only if the host asks for it, and not mirroring what was done by the other peer. It is then required to have a dedicated bit for each direction, similar to what is done in the subflow context. Fixes: f296234c ("mptcp: Add handling of incoming MP_JOIN requests") Cc: stable@vger.kernel.org Reviewed-by:
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Matthieu Baerts (NGI0) authored
The 'mptcp_subflow_context' structure has two items related to the backup flags: - 'backup': the subflow has been marked as backup by the other peer - 'request_bkup': the backup flag has been set by the host Before this patch, the scheduler was only looking at the 'backup' flag. That can make sense in some cases, but it looks like that's not what we wanted for the general use, because either the path-manager was setting both of them when sending an MP_PRIO, or the receiver was duplicating the 'backup' flag in the subflow request. Note that the use of these two flags in the path-manager are going to be fixed in the next commits, but this change here is needed not to modify the behaviour. Fixes: f296234c ("mptcp: Add handling of incoming MP_JOIN requests") Cc: stable@vger.kernel.org Reviewed-by:
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- 29 Jul, 2024 16 commits
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David S. Miller authored
Matthieu Baerts says: ==================== mptcp: fix signal endpoint readd Issue #501 [1] showed that the Netlink PM currently doesn't correctly support removal and re-add of signal endpoints. Patches 1 and 2 address the issue: the first one in the userspace path- manager, introduced in v5.19 ; and the second one in the in-kernel path- manager, introduced in v5.7. Patch 3 introduces a related selftest. There is no 'Fixes' tag, because it might be hard to backport it automatically, as missing helpers in Bash will not be caught when compiling the kernel or the selftests. The last two patches address two small issues in the MPTCP selftests, one introduced in v6.6., and the other one in v5.17. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/501 [1] ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Liu Jing authored
In main_loop_s function, when the open(cfg_input, O_RDONLY) function is run, the last fd is not closed if the "--cfg_repeat > 0" branch is not taken. Fixes: 05be5e27 ("selftests: mptcp: add disconnect tests") Cc: stable@vger.kernel.org Signed-off-by:
Liu Jing <liujing@cmss.chinamobile.com> Reviewed-by:
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Paolo Abeni authored
pm_nl_check_endpoint() currently calls an not existing helper to mark the test as failed. Fix the wrong call. Fixes: 03668c65 ("selftests: mptcp: join: rework detailed report") Cc: stable@vger.kernel.org Signed-off-by:
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Paolo Abeni authored
Delete and re-create a signal endpoint and ensure that the PM actually deletes and re-create the subflow. Signed-off-by:
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Paolo Abeni authored
Currently the per connection announced address counter is never decreased. As a consequence, after connection establishment, if the NL PM deletes an endpoint and adds a new/different one, no additional subflow is created for the new endpoint even if the current limits allow that. Address the issue properly updating the signaled address counter every time the NL PM removes such addresses. Fixes: 01cacb00 ("mptcp: add netlink-based PM") Cc: stable@vger.kernel.org Signed-off-by:
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Paolo Abeni authored
Currently the per-connection announced address counter is never decreased. When the user-space PM is in use, this just affect the information exposed via diag/sockopt, but it could still foul the PM to wrong decision. Add the missing accounting for the user-space PM's sake. Fixes: 8b1c94da ("mptcp: only send RM_ADDR in nl_cmd_remove") Cc: stable@vger.kernel.org Signed-off-by:
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Kuniyuki Iwashima authored
The cited commit accidentally replaced tgt_net with net in rtnl_dellink(). As a result, IFLA_TARGET_NETNSID is ignored if the interface is specified with IFLA_IFNAME or IFLA_ALT_IFNAME. Let's pass tgt_net to rtnl_dev_get(). Fixes: cc6090e9 ("net: rtnetlink: introduce helper to get net_device instance by ifname") Signed-off-by:
Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by:
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Andy Chiu authored
softirq may get lost if an Rx interrupt comes before we call napi_enable. Move napi_enable in front of axienet_setoptions(), which turns on the device, to address the issue. Link: https://lists.gnu.org/archive/html/qemu-devel/2024-07/msg06160.html Fixes: cc37610c ("net: axienet: implement NAPI and GRO receive") Signed-off-by:
Andy Chiu <andy.chiu@sifive.com> Reviewed-by:
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Subash Abhinov Kasiviswanathan authored
tp->scaling_ratio is not updated based on skb->len/skb->truesize once SO_RCVBUF is set leading to the maximum window scaling to be 25% of rcvbuf after commit dfa2f048 ("tcp: get rid of sysctl_tcp_adv_win_scale") and 50% of rcvbuf after commit 697a6c8c ("tcp: increase the default TCP scaling ratio"). 50% tries to emulate the behavior of older kernels using sysctl_tcp_adv_win_scale with default value. Systems which were using a different values of sysctl_tcp_adv_win_scale in older kernels ended up seeing reduced download speeds in certain cases as covered in https://lists.openwall.net/netdev/2024/05/15/13 While the sysctl scheme is no longer acceptable, the value of 50% is a bit conservative when the skb->len/skb->truesize ratio is later determined to be ~0.66. Applications not specifying SO_RCVBUF update the window scaling and the receiver buffer every time data is copied to userspace. This computation is now used for applications setting SO_RCVBUF to update the maximum window scaling while ensuring that the receive buffer is within the application specified limit. Fixes: dfa2f048 ("tcp: get rid of sysctl_tcp_adv_win_scale") Signed-off-by:
Sean Tranchetti <quic_stranche@quicinc.com> Signed-off-by:
Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com> Reviewed-by:
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David S. Miller authored
Jakub Kicinski says; ==================== ethtool: more RSS fixes More fixes for RSS setting. First two patches fix my own bugs in bnxt conversion to the new API. The third patch fixes what seems to be a 10 year old issue (present since the Linux RSS API was created). Fourth patch fixes an issue with the XArray state being out of sync. And then a small test. ==================== Signed-off-by: -
Jakub Kicinski authored
We had a handful of bugs relating to key being either all 0 or just reported incorrectly as all 0. Check for this in the tests. Signed-off-by:
Petr Machata <petrm@nvidia.com> Signed-off-by:
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Jakub Kicinski authored
We expect drivers implementing the new create/modify/destroy API to populate the defaults in struct ethtool_rxfh_context. In legacy API ctx isn't even passed, and rxfh.indir / rxfh.key are NULL so drivers can't give us defaults even if they want to. Call get_rxfh() to fetch the values. We can reuse rxfh_dev for the get_rxfh(), rxfh stores the input from the user. This fixes IOCTL reporting 0s instead of the default key / indir table for drivers using legacy API. Add a check to try to catch drivers using the new API but not populating the key. Fixes: 7964e788 ("net: ethtool: use the tracking array for get_rxfh on custom RSS contexts") Signed-off-by:
Edward Cree <ecree.xilinx@gmail.com> Signed-off-by:
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Jakub Kicinski authored
The indirection table and the key follow struct ethtool_rxfh in user memory. To reset the indirection table user space calls SET_RXFH with table of size 0 (OTOH to say "no change" it should use -1 / ~0). The logic for calculating the offset where they key sits is incorrect in this case, as kernel would still offset by the full table length, while for the reset there is no indir table and key is immediately after the struct. $ ethtool -X eth0 default hkey 01:02:03... $ ethtool -x eth0 [...] RSS hash key: 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 [...] Fixes: 3de0b592 ("ethtool: Support for configurable RSS hash key") Signed-off-by:
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Jakub Kicinski authored
As described in the kdoc for .create_rxfh_context we are responsible for populating the defaults. The core will not call .get_rxfh for non-0 context. The problem can be easily observed since Netlink doesn't currently use the cache. Using netlink ethtool: $ ethtool -x eth0 context 1 [...] RSS hash key: 13:60:cd:60:14:d3:55:36:86:df:90:f2:96:14:e2:21:05:57:a8:8f:a5:12:5e:54:62:7f:fd:3c:15:7e:76:05:71:42:a2:9a:73:80:09:9c RSS hash function: toeplitz: on xor: off crc32: off But using IOCTL ethtool shows: $ ./ethtool-old -x eth0 context 1 [...] RSS hash key: 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 RSS hash function: Operation not supported Fixes: 7964e788 ("net: ethtool: use the tracking array for get_rxfh on custom RSS contexts") Signed-off-by:Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by:
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Jakub Kicinski authored
In commit under Fixes I split the bnxt_set_rxfh_context() function, and attached the appropriate chunks to new ops. I missed that bnxt_set_rxfh_context() gets called after some initial checks in bnxt_set_rxfh(), namely that the hash function is Toeplitz. Fixes: 5c466b4d ("eth: bnxt: move from .set_rxfh to .create_rxfh_context and friends") Signed-off-by:
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Jeongjun Park authored
There are cases where do_xdp_generic returns bpf_net_context without clearing it. This causes various memory corruptions, so the missing bpf_net_ctx_clear must be added. Reported-by: syzbot+44623300f057a28baf1e@syzkaller.appspotmail.com Fixes: fecef4cd ("tun: Assign missing bpf_net_context.") Signed-off-by:
Jeongjun Park <aha310510@gmail.com> Acked-by:
Jason Wang <jasowang@redhat.com> Reviewed-by:
Willem de Bruijn <willemb@google.com> Reported-by: syzbot+3c2b6d5d4bec3b904933@syzkaller.appspotmail.com Reported-by: syzbot+707d98c8649695eaf329@syzkaller.appspotmail.com Reported-by: syzbot+c226757eb784a9da3e8b@syzkaller.appspotmail.com Reported-by: syzbot+61a1cfc2b6632363d319@syzkaller.appspotmail.com Reported-by: syzbot+709e4c85c904bcd62735@syzkaller.appspotmail.com Signed-off-by:
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- 27 Jul, 2024 3 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetoothJakub Kicinski authored
Luiz Augusto von Dentz says: ==================== bluetooth pull request for net: - btmtk: Fix kernel crash when entering btmtk_usb_suspend - btmtk: Fix btmtk.c undefined reference build error - btintel: Fail setup on error - hci_sync: Fix suspending with wrong filter policy - hci_event: Fix setting DISCOVERY_FINDING for passive scanning * tag 'for-net-2024-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: Bluetooth: hci_event: Fix setting DISCOVERY_FINDING for passive scanning Bluetooth: btmtk: remove #ifdef around declarations Bluetooth: btmtk: Fix btmtk.c undefined reference build error harder Bluetooth: btmtk: Fix btmtk.c undefined reference build error Bluetooth: hci_sync: Fix suspending with wrong filter policy Bluetooth: btmtk: Fix kernel crash when entering btmtk_usb_suspend Bluetooth: btintel: Fail setup on error ==================== Link: https://patch.msgid.link/20240726150502.3300832-1-luiz.dentz@gmail.comSigned-off-by:
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Alexander Duyck authored
In testing the recent kernel I found that the fbnic driver couldn't be enabled on x86_64 builds. A bit of digging showed that the fbnic driver was the only one to check for S390 to be n, all others had checked for !S390. Since it is a boolean and not a tristate I am not sure it will be N. So just update it to use the !S390 flag. A quick check via "make menuconfig" verified that after making this change there was an option to select the fbnic driver. Fixes 0e03c643 ("eth: fbnic: fix s390 build.") Signed-off-by:
Alexander Duyck <alexanderduyck@fb.com> Reviewed-by:
Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/172192698293.1903337.4255690118685300353.stgit@ahduyck-xeon-server.home.arpaSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wirelessJakub Kicinski authored
Johannes Berg says: ==================== Couple of more urgent fixes: * ath12k: wowlan loop iteration issue * ath12k: fix soft lockup on suspend in certain scenarios * mt76: fix crash when removing an interface * mac80211: fix injection crash with some drivers that don't want monitor vif * cfg80211: fix S1G beacon parsing in scan * cfg80211: fix MLO link status reporting on connect * tag 'wireless-2024-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: ath12k: fix soft lockup on suspend wifi: mt76: mt7921: fix null pointer access in mt792x_mac_link_bss_remove wifi: ath12k: fix reusing outside iterator in ath12k_wow_vif_set_wakeups() wifi: cfg80211: correct S1G beacon length calculation wifi: cfg80211: fix reporting failed MLO links status with cfg80211_connect_done wifi: mac80211: use monitor sdata with driver only if desired ==================== Link: https://patch.msgid.link/20240726122638.942420-3-johannes@sipsolutions.netSigned-off-by:
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- 26 Jul, 2024 10 commits
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Luiz Augusto von Dentz authored
DISCOVERY_FINDING shall only be set for active scanning as passive scanning is not meant to generate MGMT Device Found events causing discovering state to go out of sync since userspace would believe it is discovering when in fact it is just passive scanning. Cc: stable@vger.kernel.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=219088 Fixes: 2e2515c1 ("Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED") Signed-off-by:
Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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Arnd Bergmann authored
The caller of these functions in btusb.c is guarded with an if(IS_ENABLED()) style check, so dead code is left out, but the declarations are still needed at compile time: drivers/bluetooth/btusb.c: In function 'btusb_mtk_reset': drivers/bluetooth/btusb.c:2705:15: error: implicit declaration of function 'btmtk_usb_subsys_reset' [-Wimplicit-function-declaration] 2705 | err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); | ^~~~~~~~~~~~~~~~~~~~~~ drivers/bluetooth/btusb.c: In function 'btusb_send_frame_mtk': drivers/bluetooth/btusb.c:2720:23: error: implicit declaration of function 'alloc_mtk_intr_urb' [-Wimplicit-function-declaration] 2720 | urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); | ^~~~~~~~~~~~~~~~~~ drivers/bluetooth/btusb.c:2720:21: error: assignment to 'struct urb *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 2720 | urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete); | ^ Fixes: f0c83a23 ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Reviewed-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by:
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Arnd Bergmann authored
The previous fix was incomplete as the link failure still persists with CONFIG_USB=m when the sdio or serial wrappers for btmtk.c are build-in: btmtk.c:(.text+0x468): undefined reference to `usb_alloc_urb' btmtk.c:(.text+0x488): undefined reference to `usb_free_urb' btmtk.c:(.text+0x500): undefined reference to `usb_anchor_urb' btmtk.c:(.text+0x50a): undefined reference to `usb_submit_urb' btmtk.c:(.text+0x92c): undefined reference to `usb_control_msg' btmtk.c:(.text+0xa92): undefined reference to `usb_unanchor_urb' btmtk.c:(.text+0x11e4): undefined reference to `usb_set_interface' btmtk.c:(.text+0x120a): undefined reference to `usb_kill_anchored_urbs' Disallow this configuration. Fixes: f0c83a23 ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error") Signed-off-by:
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Chris Lu authored
MediaTek moved some usb interface related function to btmtk.c which may cause build failed if BT USB Kconfig wasn't enabled. Fix undefined reference by adding config check. btmtk.c:(.text+0x89c): undefined reference to `usb_alloc_urb' btmtk.c:(.text+0x8e3): undefined reference to `usb_free_urb' btmtk.c:(.text+0x956): undefined reference to `usb_free_urb' btmtk.c:(.text+0xa0e): undefined reference to `usb_anchor_urb' btmtk.c:(.text+0xb43): undefined reference to `usb_autopm_get_interface' btmtk.c:(.text+0xb7e): undefined reference to `usb_autopm_put_interface' btmtk.c:(.text+0xf70): undefined reference to `usb_disable_autosuspend' btmtk.c:(.text+0x133a): undefined reference to `usb_control_msg' Fixes: d019930b ("Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.c") Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202407091928.AH0aGZnx-lkp@intel.com/Signed-off-by:
Chris Lu <chris.lu@mediatek.com> Signed-off-by:
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Luiz Augusto von Dentz authored
When suspending the scan filter policy cannot be 0x00 (no acceptlist) since that means the host has to process every advertisement report waking up the system, so this attempts to check if hdev is marked as suspended and if the resulting filter policy would be 0x00 (no acceptlist) then skip passive scanning if thre no devices in the acceptlist otherwise reset the filter policy to 0x01 so the acceptlist is used since the devices programmed there can still wakeup be system. Fixes: 182ee45d ("Bluetooth: hci_sync: Rework hci_suspend_notifier") Signed-off-by:
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Chris Lu authored
If MediaTek's Bluetooth setup is unsuccessful, a NULL pointer issue occur when the system is suspended and the anchored kill function is called. To avoid this, add protection to prevent executing the anchored kill function if the setup is unsuccessful. [ 6.922106] Hardware name: Acer Tomato (rev2) board (DT) [ 6.922114] Workqueue: pm pm_runtime_work [ 6.922132] pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.922147] pc : usb_kill_anchored_urbs+0x6c/0x1e0 [ 6.922164] lr : usb_kill_anchored_urbs+0x48/0x1e0 [ 6.922181] sp : ffff800080903b60 [ 6.922187] x29: ffff800080903b60 x28: ffff2c7b85c32b80 x27: ffff2c7bbb370930 [ 6.922211] x26: 00000000000f4240 x25: 00000000ffffffff x24: ffffd49ece2dcb48 [ 6.922255] x20: ffffffffffffffd8 x19: 0000000000000000 x18: 0000000000000006 [ 6.922276] x17: 6531656337386238 x16: 3632373862333863 x15: ffff800080903480 [ 6.922297] x14: 0000000000000000 x13: 303278302f303178 x12: ffffd49ecf090e30 [ 6.922318] x11: 0000000000000001 x10: 0000000000000001 x9 : ffffd49ecd2c5bb4 [ 6.922339] x8 : c0000000ffffdfff x7 : ffffd49ecefe0db8 x6 : 00000000000affa8 [ 6.922360] x5 : ffff2c7bbb35dd48 x4 : 0000000000000000 x3 : 0000000000000000 [ 6.922379] x2 : 0000000000000000 x1 : 0000000000000003 x0 : ffffffffffffffd8 [ 6.922400] Call trace: [ 6.922405] usb_kill_anchored_urbs+0x6c/0x1e0 [ 6.922422] btmtk_usb_suspend+0x20/0x38 [btmtk 5f200a97badbdfda4266773fee49acfc8e0224d5] [ 6.922444] btusb_suspend+0xd0/0x210 [btusb 0bfbf19a87ff406c83b87268b87ce1e80e9a829b] [ 6.922469] usb_suspend_both+0x90/0x288 [ 6.922487] usb_runtime_suspend+0x3c/0xa8 [ 6.922507] __rpm_callback+0x50/0x1f0 [ 6.922523] rpm_callback+0x70/0x88 [ 6.922538] rpm_suspend+0xe4/0x5a0 [ 6.922553] pm_runtime_work+0xd4/0xe0 [ 6.922569] process_one_work+0x18c/0x440 [ 6.922588] worker_thread+0x314/0x428 [ 6.922606] kthread+0x128/0x138 [ 6.922621] ret_from_fork+0x10/0x20 [ 6.922644] Code: f100a274 54000520 d503201f d100a260 (b8370000) [ 6.922654] ---[ end trace 0000000000000000 ]--- Fixes: ceac1cb0 ("Bluetooth: btusb: mediatek: add ISO data transmission functions") Signed-off-by:
Nícolas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by:
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Kiran K authored
Do not attempt to send any hci command to controller if *setup* function fails. Fixes: af395330 ("Bluetooth: btintel: Add Intel devcoredump support") Signed-off-by:
Kiran K <kiran.k@intel.com> Signed-off-by:
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Mark Mentovai authored
The PHY built in to the Realtek RTL8366S switch controller was previously supported by genphy_driver. This PHY does not implement MMD operations. Since commit 9b01c885 ("net: phy: c22: migrate to genphy_c45_write_eee_adv()"), MMD register reads have been made during phy_probe to determine EEE support. For genphy_driver, these reads are transformed into 802.3 annex 22D clause 45-over-clause 22 mmd_phy_indirect operations that perform MII register writes to MII_MMD_CTRL and MII_MMD_DATA. This overwrites those two MII registers, which on this PHY are reserved and have another function, rendering the PHY unusable while so configured. Proper support for this PHY is restored by providing a phy_driver that declares MMD operations as unsupported by using the helper functions provided for that purpose, while remaining otherwise identical to genphy_driver. Fixes: 9b01c885 ("net: phy: c22: migrate to genphy_c45_write_eee_adv()") Reported-by:
Russell Senior <russell@personaltelco.net> Closes: https://github.com/openwrt/openwrt/issues/15981 Link: https://github.com/openwrt/openwrt/issues/15739Signed-off-by:
Mark Mentovai <mark@mentovai.com> Reviewed-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by:
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Johan Hovold authored
The ext interrupts are enabled when the firmware has been started, but this may never happen, for example, if the board configuration file is missing. When the system is later suspended, the driver unconditionally tries to disable interrupts, which results in an irq disable imbalance and causes the driver to spin indefinitely in napi_synchronize(). Make sure that the interrupts have been enabled before attempting to disable them. Fixes: d8899132 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Cc: stable@vger.kernel.org # 6.3 Signed-off-by:
Johan Hovold <johan+linaro@kernel.org> Acked-by:
Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://patch.msgid.link/20240709073132.9168-1-johan+linaro@kernel.orgSigned-off-by:
Johannes Berg <johannes.berg@intel.com>
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Sean Wang authored
Fix null pointer access in mt792x_mac_link_bss_remove. To prevent null pointer access, we should assign the vif to bss_conf in mt7921_add_interface. This ensures that subsequent operations on the BSS can properly reference the correct vif. [ T843] Call Trace: [ T843] <TASK> [ T843] ? __die+0x1e/0x60 [ T843] ? page_fault_oops+0x157/0x450 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? search_bpf_extables+0x5a/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? exc_page_fault+0x2bb/0x670 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? lock_timer_base+0x71/0x90 [ T843] ? asm_exc_page_fault+0x26/0x30 [ T843] ? mt792x_mac_link_bss_remove+0x24/0x110 [mt792x_lib] [ T843] ? mt792x_remove_interface+0x6e/0x90 [mt792x_lib] [ T843] ? ieee80211_do_stop+0x507/0x7e0 [mac80211] [ T843] ? ieee80211_stop+0x53/0x190 [mac80211] [ T843] ? __dev_close_many+0xa5/0x120 [ T843] ? __dev_change_flags+0x18c/0x220 [ T843] ? dev_change_flags+0x21/0x60 [ T843] ? do_setlink+0xdf9/0x11d0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? security_sock_rcv_skb+0x33/0x50 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __nla_validate_parse+0x61/0xd10 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_done+0x53/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? netlink_dump+0x357/0x410 [ T843] ? __rtnl_newlink+0x5d6/0x980 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_family_rcv_msg_dumpit+0xdf/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __kmalloc_cache_noprof+0x44/0x210 [ T843] ? rtnl_newlink+0x42/0x60 [ T843] ? rtnetlink_rcv_msg+0x152/0x3f0 [ T843] ? mptcp_pm_nl_dump_addr+0x180/0x180 [ T843] ? rtnl_calcit.isra.0+0x130/0x130 [ T843] ? netlink_rcv_skb+0x56/0x100 [ T843] ? netlink_unicast+0x199/0x290 [ T843] ? netlink_sendmsg+0x21d/0x490 [ T843] ? __sock_sendmsg+0x78/0x80 [ T843] ? ____sys_sendmsg+0x23f/0x2e0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? copy_msghdr_from_user+0x68/0xa0 [ T843] ? ___sys_sendmsg+0x81/0xd0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? crng_fast_key_erasure+0xbc/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? get_random_bytes_user+0x126/0x140 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __fdget+0xb1/0xe0 [ T843] ? __sys_sendmsg+0x56/0xa0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? do_syscall_64+0x5f/0x170 [ T843] ? entry_SYSCALL_64_after_hwframe+0x55/0x5d [ T843] </TASK> Fixes: 1541d63c ("wifi: mt76: mt7925: add mt7925_mac_link_bss_remove to remove per-link BSS") Reported-by:
Bert Karwatzki <spasswolf@web.de> Closes: https://lore.kernel.org/linux-wireless/2fee61f8c903d02a900ca3188c3742c7effd102e.camel@web.de/#bSigned-off-by:
Sean Wang <sean.wang@mediatek.com> Tested-by:
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