Linux kernel 代码问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A code issue vulnerability exists in the Linux kernel, which stems from the Btrfs file system's failure to perform null pointer checking on the btrfs root in the btrfssearchslo...

SUSE CVE-2024-56759

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when COWing tree bock and tracing is enabled When a COWing a tree block, at btrfscowblock, and we have the tracepoint tracebtrfscowblock enabled and preemption is also enabled CONFIGPREEMPT=y, we can...

PT-2025-4339

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6 Description A vulnerability in the Linux kernel has been resolved, which avoids a NULL pointer dereference if no valid extent tree is present. The issue was reported by Syzbot, which triggered a crash with a...

PT-2025-49786

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel’s f2fs file system related to an infinite loop within the insert extent tree function. This occurs when incorrect extent information is received durin...

PT-2026-26112

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue where data reservation was incorrectly freed during fallback from inline extent creation due to an -ENOSPC error. This occurred when failing to create ...

PT-2026-26111

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to a reservation leak within the btrfs file system when inserting inline extents. Specifically, if allocation of a path or joining a transaction...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where the extent map was used after free, when adding pages to compressed Bio data structures. In the function addrabiopages, we access the extent map to calculate ‘addsize’. After dropping the reference to...

PT-2025-2615

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description The issue arises from the Linux kernel's handling of the extent tree during its shrink operation. Specifically, when there is a huge number of extent nodes in the extent tree, the kernel may ho...

The vulnerability of the ext4_split_extent_at() function in the ext4 file system of Linux kernels allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the ext4splitextentat function in the fs/ext4/extents.c file of the Linux kernel’s file system ext4 is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibilit...

CLSA-2024-1731430561 kernel: Fix of 31 CVEs

driver core: bus: Fix double free in driver API busregister CVE-2024-50055 - net: tun: Fix use-after-free in tundetach CVE-2022-49014 - memcg: fix possible use-after-free in memcgwriteeventcontrol CVE-2022-48988 - ppp: fix pppasyncencode illegal access CVE-2024-50035 - drivers: media:...

ext4: update orig_path in ext4_find_extent()

...

ext4: fix slab-use-after-free in ext4_split_extent_at()

...

SUSE CVE-2024-49881

In the Linux kernel, the following vulnerability has been resolved: ext4: update origpath in ext4findextent In ext4findextent, if the path is not big enough, we free it and set origpath to NULL. But after reallocating and successfully initializing the path, we don't update origpath, in which case...

SUSE CVE-2024-49884

In the Linux kernel, the following vulnerability has been resolved: ext4: fix slab-use-after-free in ext4splitextentat We hit the following use-after-free: ================================================================== BUG: KASAN: slab-use-after-free in ext4splitextentat+0xba8/0xcc0 Read of...

SUSE CVE-2024-49889

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid use-after-free in ext4extshowleaf In ext4findextent, path may be freed by error or be reallocated, so using a previously saved ppath may have been freed and thus may trigger use-after-free, as follows: ext4splitextent...

SUSE CVE-2022-48946

In the Linux kernel, the following vulnerability has been resolved: udf: Fix preallocation discarding at indirect extent boundary When preallocation extent is the first one in the extent block, the code would corrupt extent tree header instead. Fix the problem and use udfdeleteaext for deleting...

DEBIAN-CVE-2022-48946

In the Linux kernel, the following vulnerability has been resolved: udf: Fix preallocation discarding at indirect extent boundary When preallocation extent is the first one in the extent block, the code would corrupt extent tree header instead. Fix the problem and use udfdeleteaext for deleting...

UBUNTU-CVE-2022-48946

In the Linux kernel, the following vulnerability has been resolved: udf: Fix preallocation discarding at indirect extent boundary When preallocation extent is the first one in the extent block, the code would corrupt extent tree header instead. Fix the problem and use udfdeleteaext for deleting...

CVE-2022-48946 udf: Fix preallocation discarding at indirect extent boundary

In the Linux kernel, the following vulnerability has been resolved: udf: Fix preallocation discarding at indirect extent boundary When preallocation extent is the first one in the extent block, the code would corrupt extent tree header instead. Fix the problem and use udfdeleteaext for deleting...

CVE-2022-48946 udf: Fix preallocation discarding at indirect extent boundary

In the Linux kernel, the following vulnerability has been resolved: udf: Fix preallocation discarding at indirect extent boundary When preallocation extent is the first one in the extent block, the code would corrupt extent tree header instead. Fix the problem and use udfdeleteaext for deleting...