CVE-2024-14027
MEDIUM 1 PoC
MEDIUM
Priority: 0.01
BB Relevance:
46/100
Published: 2026-03-09
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: fs/xattr: missing fdput() in fremovexattr error path In the Linux kernel, the fremovexattr() syscall calls fdget() to acquire a file reference but returns early without calling fdput() when strncpy_from_user() fails on the name argument. In multi-threaded processes where fdget() takes the slow path, this permanently leaks one file reference per call, pinning the struct file and associated kernel objects in memory. An unprivileged local user can exploit this to cause kernel memory exhaustion. The issue was inadvertently fixed by commit a71874379ec8 ("xattr: switch to CLASS(fd)").
Weakness Classification (1)
Affected Software (8)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | c03185f4a23e7f89d84c9981091770e876e64480 < 9a3a2ae5efbbcaed37551218abed94e23c537157 |
| Linux | Linux | c3a5e3e872f3688ae0dc57bb78ca633921d96a91 < d151b94967c8247005435b63fc60f8f4baa320da |
| Linux | Linux | c3a5e3e872f3688ae0dc57bb78ca633921d96a91 < a71874379ec8c6e788a61d71b3ad014a8d9a5c08 |
| Linux | Linux | 8d5863cb33aa424fc27115ee945ad6b96ae2facb |
| Linux | Linux | 6.6.51 < 6.6.133 |
| Linux | Linux | 6.10.10 < 6.11 |
| Linux | Linux | 6.11 |
| linux | linux_kernel | 6.6.51 – 6.6.133 |