[SRU][F/J/N][PATCH 0/2] CVE-2024-42160

[Massimiliano Pellizzer]

[Impact]

f2fs: check validation of fault attrs in f2fs_build_fault_attr()

- It missed to check validation of fault attrs in parse_options(),
let's fix to add check condition in f2fs_build_fault_attr().
- Use f2fs_build_fault_attr() in __sbi_store() to clean up code.

[Fix]

Noble:  Clean cherry pick from linux-6.9.y
Jammy:  Backported from linux-6.1.y solving merge conflicts due to the usage of a macro
Focal:  Backported from linux-6.1.y solving merge conflicts due to the usage of a macro
Bionic: In progress
Xenial: Not affected

The patch series, include also a patch which fixes a
bug introduced by the fix commit of CVE-2024-42160.

[Test Cases]

Compile and boot tested.

[Where problems could occur]

The fix affects the F2FS file system implementation. An issue with this
fix may lead to kernel crashes, particularly during file system
operations on F2FS formatted partitions. Users may also notice data
corruption or unexpected read/write failures when interacting with a
devices using the F2FS file system.

Chao Yu (1):
  f2fs: check validation of fault attrs in f2fs_build_fault_attr()

 fs/f2fs/f2fs.h  | 12 ++++++++----
 fs/f2fs/super.c | 27 ++++++++++++++++++++-------
 fs/f2fs/sysfs.c | 14 ++++++++++----
 3 files changed, 38 insertions(+), 15 deletions(-)

-- 
2.43.0