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High severity7.8NVD Advisory· Published Sep 18, 2024· Updated Aug 4, 2026

CVE-2024-46801

CVE-2024-46801

Description

In the Linux kernel, the following vulnerability has been resolved:

libfs: fix get_stashed_dentry()

get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection.

Affected products

10
  • Linux/Kernel9 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.9,<6.10.10
    • cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 6.9
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.9.0, < 6.10.10

Patches

Vulnerability mechanics

References

2

News mentions

0

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