CVE-2025-21672

Updated: 2025-02-04 15:30:50.559395

Description:

In the Linux kernel, the following vulnerability has been resolved: afs: Fix merge preference rule failure condition syzbot reported a lock held when returning to userspace[1]. This is because if argc is less than 0 and the function returns directly, the held inode lock is not released. Fix this by store the error in ret and jump to done to clean up instead of returning directly. [dh: Modified Lizhi Xu's original patch to make it honour the error code from afs_split_string()] [1] WARNING: lock held when returning to user space! 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 Not tainted ------------------------------------------------ syz-executor133/5823 is leaving the kernel with locks still held! 1 lock held by syz-executor133/5823: #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: afs_proc_addr_prefs_write+0x2bb/0x14e0 fs/afs/addr_prefs.c:388


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x MEDIUM 5.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 5.5 MEDIUM Ignored 2025-02-07 06:33:33
AlmaLinux 9.2 FIPS kernel 5.14.0 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CentOS 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CentOS 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CentOS 8.4 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CentOS 8.5 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CentOS Stream 8 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-02-07 06:33:32
CloudLinux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-02-07 06:33:33
CloudLinux 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-02-07 06:33:32
Oracle Linux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-02-07 06:33:33
Total: 14