n the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedule_work outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could trigger a lockdep warning due to a potential deadlock scenario involving nested locks between rhashtable bucket, rq lock, and dsq lock. By relocating the growth check and work scheduling after releasing the rth lock, we break this potential deadlock chain. This change expands the flexibility of rhashtable by removing restrictive locking that previously limited its use in scheduler and workqueue contexts. Import to say that this calls rht_grow_above_75(), which reads from struct rhashtable without holding the lock, if this is a problem, we can move the check to the lock, and schedule the workqueue after the lock. Modified so that atomic_inc is also moved outside of the bucket lock along with the growth above 75% check.
Configuration 1 (hide)
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05 Mar 2025, 14:57
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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| CWE | CWE-667 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux
Linux linux Kernel |
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| References | () https://git.kernel.org/stable/c/ced8ce3c83a7150c5f5d371a8c332d7bc7f9b66d - Patch | |
| References | () https://git.kernel.org/stable/c/e1d3422c95f003eba241c176adfe593c33e8a8f6 - Patch | |
| References | () https://git.kernel.org/stable/c/eb2e58484b838fb4e777ee9721bb9e20e6ca971d - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
27 Feb 2025, 20:16
| Type | Values Removed | Values Added |
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| New CVE |
Published : 2025-02-27 20:16
Updated : 2025-10-01 20:18
NVD link : CVE-2024-58042
Mitre link : CVE-2024-58042
CVE.ORG link : CVE-2024-58042
JSON object : View
Improper Locking