CVE-2025-71119
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
powerpc/kexec: Enable SMT before waking offline CPUs
In the Linux kernel, the following vulnerability has been resolved: powerpc/kexec: Enable SMT before waking offline CPUs If SMT is disabled or a partial SMT state is enabled, when a new kernel image is loaded for kexec, on reboot the following warning is observed: kexec: Waking offline cpu 228. WARNING: CPU: 0 PID: 9062 at arch/powerpc/kexec/core_64.c:223 kexec_prepare_cpus+0x1b0/0x1bc [snip] NIP kexec_prepare_cpus+0x1b0/0x1bc LR kexec_prepare_cpus+0x1a0/0x1bc Call Trace: kexec_prepare_cpus+0x1a0/0x1bc (unreliable) default_machine_kexec+0x160/0x19c machine_kexec+0x80/0x88 kernel_kexec+0xd0/0x118 __do_sys_reboot+0x210/0x2c4 system_call_exception+0x124/0x320 system_call_vectored_common+0x15c/0x2ec This occurs as add_cpu() fails due to cpu_bootable() returning false for CPUs that fail the cpu_smt_thread_allowed() check or non primary threads if SMT is disabled. Fix the issue by enabling SMT and resetting the number of SMT threads to the number of threads per core, before attempting to wake up all present CPUs.
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) |
|---|---|---|---|---|---|
| 482fa21635c8832db022cd2d649db26b8e6170ac | affected | git | 7cccd82a0e4aad192fd74fc60e61ed9aed5857a3 | Unavailable | None listed |
| 38253464bc821d6de6bba81bb1412ebb36f6cbd1 | affected | git | d790ef0c4819424ee0c2f448c0a8154c5ca369d1 | Unavailable | None listed |
| 38253464bc821d6de6bba81bb1412ebb36f6cbd1 | affected | git | f0c0a681ffb77b8c5290c88c02d968199663939b | Unavailable | None listed |
| 38253464bc821d6de6bba81bb1412ebb36f6cbd1 | affected | git | 0d5c9e901ad40bd39b38e119c0454b52d7663930 | Unavailable | None listed |
| 38253464bc821d6de6bba81bb1412ebb36f6cbd1 | affected | git | c2296a1e42418556efbeb5636c4fa6aa6106713a | Unavailable | None listed |
| 15141adf85b14a7cff7abba1cb983f0bf17e3b36 | affected | git | Unavailable | Unavailable | None listed |
| 6.1.72 | affected | semver | 6.1.160 | Unavailable | None listed |
| 6.5.12 | affected | semver | 6.6 | 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) |
|---|---|---|---|---|---|
| 6.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.6 | Unavailable | None listed |
| 6.1.160 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.120 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.64 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.3 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |