CVE-2023-53503

In the Linux kernel, the following vulnerability has been resolved: ext4: allow ext4getgroupinfo to fail Previously, ext4getgroupinfo would treat an invalid group number as BUG, since in theory it should never happen. However, if a malicious attaker or fuzzer modifies the superblock via the block...

CVE-2023-53485

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2022-50455

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2022-50436

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 "ext4: fixup ext4fctrack functions' signature" extended the scope of the transaction in ext4unlink too far, making it include the call to ext4findentry...

UBUNTU-CVE-2022-50456

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix resolving backrefs for inline extent followed by prealloc If a file consists of an inline extent followed by a regular or prealloc extent, then a legitimate attempt to resolve a logical address in the non-inline region...

UBUNTU-CVE-2023-53457

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

UBUNTU-CVE-2022-50435

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid crash when inline data creation follows DIO write When inode is created and written to using direct IO, there is nothing to clear the EXT4STATEMAYINLINEDATA flag. Thus when inode gets truncated later to say 1 byte and...

CVE-2023-53503

In the Linux kernel, the vulnerability CVE-2023-53503 affects ext4: ext4_get_group_info() could underflow when computing a block group if s_first_data_block is set to an extremely large value due to a malicious attacker with write access to the block device while the filesystem is mounted. This c...

CVE-2023-53485 fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2023-53485

CVE-2023-53485 affects the Linux kernel JFS code path. The UBSAN out-of-bounds access in fs/jfs/jfs_dmap.c:1965 was triggered when dbAllocDmapLev accessed dp->tree.stree[leafidx + LEAFIND] with a negative leafidx. The patch adds a guard in dbAllocDmapLev to return an I/O error if leafidx is ne...

CVE-2023-53457

CVE-2023-53457 : In Linux kernel, JFS txBegin can NULL-deref when called on a read-only superblock; fix adds a read-only filesystem check before txBegin and returns an appropriate error code. Exploitation status and exact patch details beyond this description are not provided in the supplied docu...

CVE-2023-53457 FS: JFS: Fix null-ptr-deref Read in txBegin

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

CVE-2022-50428

CVE-2022-50428 affects the Linux kernel ext4 fast-commit journaling, caused by multiple off-by-one errors in filling tlv blocks. The issues constrain where tlvs start and end within a block, risking replay problems and memory leakage in last-byte handling. The fixed patch corrects block-filling o...

CVE-2025-39924

The CVE-2025-39924 entry relates to the Linux kernel EROFS code. A bug was fixed where the algorithm used to validate encoded extents was incorrect; the check is now unified with Z_EROFS_COMPRESSION(_RUNTIME)_MAX and aligned with sbi->available_compr_algs. The impact described in sources is li...

CVE-2025-39910 mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc, mm/kasan: respect gfp mask in kasanpopulatevmalloc kasanpopulatevmalloc and its helpers ignore the caller's gfpmask and always allocate memory using the hardcoded GFPKERNEL flag. This makes them inconsistent with...

CVE-2025-39910 mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc, mm/kasan: respect gfp mask in kasanpopulatevmalloc kasanpopulatevmalloc and its helpers ignore the caller's gfpmask and always allocate memory using the hardcoded GFPKERNEL flag. This makes them inconsistent with...

CVE-2025-39910 mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc, mm/kasan: respect gfp mask in kasanpopulatevmalloc kasanpopulatevmalloc and its helpers ignore the caller's gfpmask and always allocate memory using the hardcoded GFPKERNEL flag. This makes them inconsistent with...

CVE-2023-53457: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

PT-2025-40150

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's ext4 filesystem related to the fast-commit journal. Specifically, uninitialized memory could be leaked to disk when space at the end of fast-commit...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to check the filesystem for read-only, which could lead to null pointer dereferencing...