CVE-2024-44958
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
sched/smt: Fix unbalance sched_smt_present dec/inc
In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fix unbalance sched_smt_present dec/inc I got the following warn report while doing stress test: jump label: negative count! WARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Call Trace: <TASK> __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> Because when cpuset_cpu_inactive() fails in sched_cpu_deactivate(), the cpu offline failed, but sched_smt_present is decremented before calling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so fix it by incrementing sched_smt_present in the error path.
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) |
|---|---|---|---|---|---|
| c5511d03ec090980732e929c318a7a6374b5550e | affected | git | 2a3548c7ef2e135aee40e7e5e44e7d11b893e7c4 | Unavailable | None listed |
| c5511d03ec090980732e929c318a7a6374b5550e | affected | git | 2cf7665efe451e48d27953e6b5bc627d518c902b | Unavailable | None listed |
| c5511d03ec090980732e929c318a7a6374b5550e | affected | git | 65727331b60197b742089855ac09464c22b96f66 | Unavailable | None listed |
| c5511d03ec090980732e929c318a7a6374b5550e | affected | git | d0c87a3c6be10a57aa3463c32c3fc6b2a47c3dab | Unavailable | None listed |
| c5511d03ec090980732e929c318a7a6374b5550e | affected | git | e22f910a26cc2a3ac9c66b8e935ef2a7dd881117 | Unavailable | None listed |
| 01659361c63fdc91c0af239d08cdd211d590a656 | affected | git | Unavailable | Unavailable | None listed |
| a2c094816f894b7a265851fad858e994fa0f78b3 | affected | git | Unavailable | Unavailable | None listed |
| 4.14.86 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.7 | affected | semver | 4.20 | 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) |
|---|---|---|---|---|---|
| 4.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.20 | Unavailable | None listed |
| 5.15.165 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.105 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.46 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.5 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11 | unaffected | original_commit_for_fix | Unavailable | * | None listed |