CVE-2026-31703

The CVE-2026-31703 entry is supported by multiple connected sources describing a Linux kernel use-after-free in the writeback path. Specifically, inode_switch_wbs_work_fn() loops over switch_wbs_ctxs and can have wb->switch_work pending while the wb reference is dropped, enabling a use-after-f...

UBUNTU-CVE-2025-68772

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-68772 f2fs: fix to avoid updating compression context during writeback

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-40054 f2fs: fix UAF issue in f2fs_merge_page_bio()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF issue in f2fsmergepagebio As JY reported in bugzilla 1, Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 pc : 0xffffffe51d249484 f2fsiscpguaranteed+0x70/0x98 lr : 0xffffffe51d24ad...

CVE-2023-53178

In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race...

CVE-2025-23132 f2fs: quota: fix to avoid warning in dquot_writeback_dquots()

In the Linux kernel, the following vulnerability has been resolved: f2fs: quota: fix to avoid warning in dquotwritebackdquots F2FS-fs dm-59: checkpoint=enable has some unwritten data. ------------ cut here ------------ WARNING: CPU: 6 PID: 8013 at fs/quota/dquot.c:691...

DEBIAN-CVE-2022-48877

In the Linux kernel, the following vulnerability has been resolved: f2fs: let's avoid panic if extenttree is not created This patch avoids the below panic. pc : lookupextenttree+0xd8/0x760 lr : f2fsdowritedatapage+0x104/0x87c sp : ffffffc010cbb3c0 x29: ffffffc010cbb3e0 x28: 0000000000000000 x27:...

AZL-47934 CVE-2024-42102 affecting package kernel for versions less than 5.15.164.1-1

In the Linux kernel, the following vulnerability has been resolved: Revert "mm/writeback: fix possible divide-by-zero in wbdirtylimits, again" Patch series "mm: Avoid possible overflows in dirty throttling". Dirty throttling logic assumes dirty limits in page units fit into 32-bits. This patch...

CVE-2024-26720

In the Linux kernel, the following vulnerability has been resolved: mm/writeback: fix possible divide-by-zero in wbdirtylimits, again struct dirtythrottlecontrol -thresh is an unsigned long, but is passed as the u32 divisor argument to divu64. On architectures where unsigned long is 64 bytes, the...