CVE-2020-8992

CVE-2020-8992 affects the Linux kernel ext4 implementation (ext4_protect_reserved_inode in fs/ext4/block_validity.c) through version 5.5.3. A crafted journal size can cause a denial of service (soft lockup) via a local attack. Connected advisories (e.g., SUSE-SU-2020:1663-1, Ubuntu USN-4419-1, Un...

CVE-2025-21726

In CVE-2025-21726, the Linux kernel padata subsystem had a use-after-free (UAF) in the reorder_work path. The root cause was that the previous patch did not hold a reference to 'pd' long enough when queuing reorder_work. The fix is to take a reference to 'pd' before queuing reorder_work and to ke...

CVE-2023-52854

CVE-2023-52854 affects the Linux kernel's padata subsystem. In high-load arm64 scenarios, a race in refcount handling can cause a Use-After-Free when pd is freed during padata_serial_worker execution, leading to a potential crash or memory corruption. The documented root cause is improper refcoun...

CVE-2020-36791

The CVE-2020-36791 entry refers to a Linux kernel net_sched issue where cp->alloc_hash could be left at an incorrect size after a hash allocation, enabling a potential out-of-bounds access. The described root cause is that the hash calculation was moved before tcindex_alloc_perfect_hash() but ...