CVE-2026-89749
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
tracing: Fix crash passing ERR_PTR to kthread_stop()
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash passing ERR_PTR to kthread_stop() event_test_stuff() calls kthread_run() and unconditionally passes the returned task_struct pointer to kthread_stop(). kthread_run() returns an error pointer such as ERR_PTR(-ENOMEM) when kthread creation fails, for example under memory pressure during the boot-time event self-test. kthread_stop() then dereferences the invalid pointer, crashing the kernel. Check the result of kthread_run() before passing it to kthread_stop(). Use WARN_ON() so that a failure to create the self-test thread does not go unnoticed, matching the ring-buffer self-test fix in commit 91542863abad ("ring-buffer: Fix crash passing ERR_PTR to kthread_stop()").
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) |
|---|---|---|---|---|---|
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | c1a4fb7aa290f158d50654d640292e49d9055fd1 | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | 42ccb215ef0a552acbbd32f81009bfe4b278ba77 | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | 98d06fb9865a490e12ebe32d65b9ffac6108614d | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | ceb1707aef5824cf024eb82d10787b7621e2ff35 | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | 12a499f741fc5be3731c8b0a0d909406575cc2eb | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | adadf4192f700bca82abfda9fa6d58c0bf37cc04 | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | c40e0b4fa365969e67011529eabdfb66d1022256 | Unavailable | None listed |
| e6187007d6c365b551c69ea3df46f06fd1c8bd19 | affected | git | 649bc7df3e5d7be6f7996a95084037dbf3cad1e5 | 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) |
|---|---|---|---|---|---|
| 2.6.31 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.31 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |