CVE-2026-90066
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)
samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
In the Linux kernel, the following vulnerability has been resolved: samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify ftrace_direct_multi_init() assigns kthread_run()'s return value to simple_tsk without an IS_ERR() check. When kthread_run() fails it returns ERR_PTR(-ENOMEM), but init still returns 0, so the module loads with simple_tsk holding an error pointer. On unload, ftrace_direct_multi_exit() then passes that ERR_PTR to kthread_stop(), leading to a null-pointer-dereference. Check the return value of kthread_run() with IS_ERR(); on failure, unregister the ftrace direct call and propagate the error 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) |
|---|---|---|---|---|---|
| e1067a07cfbc5a36abad3752fafe4c79e06db1bb | affected | git | 7a96b9f6d5ba23dbce66c8a4a242effd4c01a830 | Unavailable | None listed |
| e1067a07cfbc5a36abad3752fafe4c79e06db1bb | affected | git | 98b7b2a29ae87937aa02ab9391543ef8c602cd94 | Unavailable | None listed |
| e1067a07cfbc5a36abad3752fafe4c79e06db1bb | affected | git | 626614df9080d7052fbe24dc90b5434717ab7a9f | Unavailable | None listed |
| e1067a07cfbc5a36abad3752fafe4c79e06db1bb | affected | git | cf839636911d8313f3ecd098329fd0b96499e4cf | Unavailable | None listed |
| e1067a07cfbc5a36abad3752fafe4c79e06db1bb | affected | git | 6727b7618f49401acf373fa3ec5712e2ec52e5cf | 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) |
|---|---|---|---|---|---|
| 5.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.16 | Unavailable | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |