CVE-2023-53815
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
posix-timers: Prevent RT livelock in itimer_delete()
In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimer_delete() itimer_delete() has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK enabled. In that case and on RT kernels the existing task could live lock when preempting the task which does the timer delivery. Replace spin_unlock() with an invocation of timer_wait_running() to handle it the same way as the other retry loops in the posix timer code.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | f1be1ed32daa053484222f7f9beb2b16c624dffd | Unavailable | None listed |
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | 0670c4c567b27bd8f999a943028f4fe60d1a1106 | Unavailable | None listed |
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | e7aff15ba29ba4b3052786b1636fa5c4aa39e179 | Unavailable | None listed |
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | f9bd298e3e4d3fd6e19f017789a42d0f332cd555 | Unavailable | None listed |
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | c1968bb8a28625cc95d2ad3ca872ab98c9c36d59 | Unavailable | None listed |
| ec8f954a40da8cd3d159713b608e901f0cd909a9 | affected | git | 9d9e522010eb5685d8b53e8a24320653d9d4cbbf | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.4 | Unavailable | None listed |
| 5.10.188 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.121 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.39 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.3.13 | unaffected | semver | Unavailable | 6.3.* | None listed |
| 6.4.4 | unaffected | semver | Unavailable | 6.4.* | None listed |
| 6.5 | unaffected | original_commit_for_fix | Unavailable | * | None listed |