Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic. Panic backtrace: [ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init! [ rjw: New subject ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3cc30dd00a580ca0c9c0b01639841cfd72d10129 before 356d09c7f5bf525086002a34f8bae40b134d1611; affected 3cc30dd00a580ca0c9c0b01639841cfd72d10129 before c6dad167aade4bf0bef9130f2f149f4249fc4ad0; affected 3cc30dd00a580ca0c9c0b01639841cfd72d10129 before 32a48db4cf28ea087214c261da8476db218d08bd; affected 3cc30dd00a580ca0c9c0b01639841cfd72d10129 before 1a677d0ceb4a5d62117b711a8b2e0aee80d33015; affected 3cc30dd00a580ca0c9c0b01639841cfd72d10129 before 15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12 |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.142 through 6.1.*; unaffected 6.6.94 through 6.6.*; unaffected 6.12.34 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611
- https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0
- https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd
- https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015
- https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12
ADP enrichment
No English description supplied.