CVE-2023-31084
- State
- Published
- Severity
- 5.5 Medium
- Published
- Apr 24, 2023
- Updated
- Mar 18, 2025
- Reserved
- Apr 24, 2023
Description
An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-833 Deadlock
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://lore.kernel.org/all/CA+UBctCu7fXn4q41O_3=id1+OdyQ85tZY1x+TkT-6OVBL6KAUw%40mail.gmail.com/
- FEDORA-2023-75b22000cdvendor-advisory
- FEDORA-2023-4426b7005fvendor-advisory
- DSA-5448vendor-advisory
- [debian-lts-announce] 20230727 [SECURITY] [DLA 3508-1] linux security updatemailing-list
- DSA-5480vendor-advisory
- https://security.netapp.com/advisory/ntap-20230929-0003/
- [debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security updatemailing-list
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946
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