mbox series

[SRU,F/J,0/2,N,0/1] CVE-2024-44942

Message ID 20241001164952.58114-1-massimiliano.pellizzer@canonical.com
Headers show
Series CVE-2024-44942 | expand

Message

Massimiliano Pellizzer Oct. 1, 2024, 4:49 p.m. UTC 
[Impact]

Add sanity check on F2FS_INLINE_DATA flag in inode during garbage
collection.

[Fix]

Noble:  Cherry picked the fix commit from linux-6.10.y
Jammy:  Backported both a prereq and the fix from linux-6.6.y
Focal:  Backported both a prereq and the fix from linux-6.6.y
Bionic: In progress
Xenial: In progress

[Test Case]

Compile and boot tested.
Moreover tested a f2fs partition using the command:
stress-ng --hdd 4 --hdd-ops 200000 --iomix 4 --timeout 120s --temp-path /path/to/f2fs

[Where problems could occur]

The fix affects the f2fs filesystem. An issue with this fix may lead to
kernel crashes, particularly during the garbage collection process.
Users may also notice filesystem inconsistencies and data corruption.

Chao Yu (2):
  f2fs: support printk_ratelimited() in f2fs_printk()
  f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during
    GC

 fs/f2fs/dir.c   |  5 ++---
 fs/f2fs/f2fs.h  | 38 ++++++++++++++++++++++----------------
 fs/f2fs/gc.c    | 10 ++++++++++
 fs/f2fs/super.c | 11 ++++++++---
 4 files changed, 42 insertions(+), 22 deletions(-)