7.8

CVE-2023-52859

perf: hisi: Fix use-after-free when register pmu fails

In the Linux kernel, the following vulnerability has been resolved:

perf: hisi: Fix use-after-free when register pmu fails

When we fail to register the uncore pmu, the pmu context may not been
allocated. The error handing will call cpuhp_state_remove_instance()
to call uncore pmu offline callback, which migrate the pmu context.
Since that's liable to lead to some kind of use-after-free.

Use cpuhp_state_remove_instance_nocalls() instead of
cpuhp_state_remove_instance() so that the notifiers don't execute after
the PMU device has been failed to register.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.13 < 5.15.139
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.63
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.12
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.15
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/0e1e88bba286621b886218363de07b319d6208b2
Patch
https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda
Patch
https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63
Patch
https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5
Patch
https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735
Patch