In the Linux kernel, the following vulnerability has been resolved:
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
If get_clock_desc() succeeds, it calls fget() for the clockid's fd,
and get the clk->rwsem read lock, so the error path should release
the lock to make the lock balance and fput the clockid's fd to make
the refcount balance and release the fd related resource.
However the below commit left the error path locked behind resulting in
unbalanced locking. Check timespec64_valid_strict() before
get_clock_desc() to fix it, because the "ts" is not changed
after that.
[[email protected]: fixed commit message typo]
Metrics
Affected Vendors & Products
References
History
Fri, 22 Nov 2024 14:00:00 +0000
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threat_severity
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threat_severity
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Tue, 19 Nov 2024 16:45:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-667 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.15.169:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1.114:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11.5:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.6.58:*:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
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Metrics |
cvssV3_1
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Fri, 08 Nov 2024 16:15:00 +0000
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Fri, 08 Nov 2024 06:15:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [[email protected]: fixed commit message typo] | |
Title | posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() | |
References |
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-11-08T06:08:00.319Z
Updated: 2024-12-19T09:35:30.669Z
Reserved: 2024-10-21T19:36:19.970Z
Link: CVE-2024-50210
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2024-11-08T06:15:17.350
Modified: 2024-11-19T16:26:34.767
Link: CVE-2024-50210
Redhat