CVE-2026-45912: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: don't cache extent during splitting extent Caching extents during the splitting process is risky, as it may result in stale extents remaining in the status tree. Moreover, in most cases, the corresponding extent block entri...

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...

CVE-2024-49889

CVE-2024-49889: Linux kernel ext4 uses-after-free in ext4_ext_show_leaf() and related ext4 extents handling. The issue arises when EXT_DEBUG is defined and a saved path pointer may be freed during extent handling, leading to use-after-free in ext4_ext_show_leaf() or during ext4_ext_handle unwritt...

Linux kernel 安全漏洞

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 improper access to freed memory in the ext4 file system in the ext4splitextentat function, leading to a...

CVE-2024-49884: Use After Free

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...

CVE-2021-47117: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4escacheextent as ext4splitextentat failed We got follow bugon when run fsstress with injecting IO fault: 130747.323114 kernel BUG at fs/ext4/extentsstatus.c:762! 130747.323117 Internal error: Oops - BUG: 0...