1. 15 May, 2021 3 commits
    • Linus Torvalds's avatar
      Merge tag 'dax-fixes-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 393f42f1
      Linus Torvalds authored
      Pull dax fixes from Dan Williams:
       "A fix for a hang condition due to missed wakeups in the filesystem-dax
        core when exercised by virtiofs.
      
        This bug has been there from the beginning, but the condition has
        not triggered on other filesystems since they hold a lock over
        invalidation events"
      
      * tag 'dax-fixes-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        dax: Wake up all waiters after invalidating dax entry
        dax: Add a wakeup mode parameter to put_unlocked_entry()
        dax: Add an enum for specifying dax wakup mode
      393f42f1
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2021-05-15' of git://anongit.freedesktop.org/drm/drm · 33f85ca4
      Linus Torvalds authored
      Pull more drm fixes from Dave Airlie:
       "Looks like I wasn't the only one not fully switched on this week. The
        msm pull has a missing tag so I missed it, and i915 team were a bit
        late. In my defence I did have a day with the roof of my home office
        removed, so was sitting at my kids desk.
      
        msm:
         - dsi regression fix
         - dma-buf pinning fix
         - displayport fixes
         - llc fix
      
        i915:
         - Fix active callback alignment annotations and subsequent crashes
         - Retract link training strategy to slow and wide, again
         - Avoid division by zero on gen2
         - Use correct width reads for C0DRB3/C1DRB3 registers
         - Fix double free in pdp allocation failure path
         - Fix HDMI 2.1 PCON downstream caps check"
      
      * tag 'drm-fixes-2021-05-15' of git://anongit.freedesktop.org/drm/drm:
        drm/i915: Use correct downstream caps for check Src-Ctl mode for PCON
        drm/i915/overlay: Fix active retire callback alignment
        drm/i915: Fix crash in auto_retire
        drm/i915/gt: Fix a double free in gen8_preallocate_top_level_pdp
        drm/i915: Read C0DRB3/C1DRB3 as 16 bits again
        drm/i915: Avoid div-by-zero on gen2
        drm/i915/dp: Use slow and wide link training for everything
        drm/msm/dp: initialize audio_comp when audio starts
        drm/msm/dp: check sink_count before update is_connected status
        drm/msm: fix minor version to indicate MSM_PARAM_SUSPENDS support
        drm/msm/dsi: fix msm_dsi_phy_get_clk_provider return code
        drm/msm/dsi: dsi_phy_28nm_8960: fix uninitialized variable access
        drm/msm: fix LLC not being enabled for mmu500 targets
        drm/msm: Do not unpin/evict exported dma-buf's
      33f85ca4
    • Tetsuo Handa's avatar
      tty: vt: always invoke vc->vc_sw->con_resize callback · ffb324e6
      Tetsuo Handa authored
      syzbot is reporting OOB write at vga16fb_imageblit() [1], for
      resize_screen() from ioctl(VT_RESIZE) returns 0 without checking whether
      requested rows/columns fit the amount of memory reserved for the graphical
      screen if current mode is KD_GRAPHICS.
      
      ----------
        #include <sys/types.h>
        #include <sys/stat.h>
        #include <fcntl.h>
        #include <sys/ioctl.h>
        #include <linux/kd.h>
        #include <linux/vt.h>
      
        int main(int argc, char *argv[])
        {
              const int fd = open("/dev/char/4:1", O_RDWR);
              struct vt_sizes vt = { 0x4100, 2 };
      
              ioctl(fd, KDSETMODE, KD_GRAPHICS);
              ioctl(fd, VT_RESIZE, &vt);
              ioctl(fd, KDSETMODE, KD_TEXT);
              return 0;
        }
      ----------
      
      Allow framebuffer drivers to return -EINVAL, by moving vc->vc_mode !=
      KD_GRAPHICS check from resize_screen() to fbcon_resize().
      
      Link: https://syzkaller.appspot.com/bug?extid=1f29e126cf461c4de3b3 [1]
      Reported-by: default avatarsyzbot <syzbot+1f29e126cf461c4de3b3@syzkaller.appspotmail.com>
      Suggested-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Tested-by: default avatarsyzbot <syzbot+1f29e126cf461c4de3b3@syzkaller.appspotmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ffb324e6
  2. 14 May, 2021 7 commits
  3. 13 May, 2021 23 commits
  4. 12 May, 2021 7 commits