Description
In the Linux kernel, the following vulnerability has been resolved: perf/core: Exit early on perf_mmap() fail When perf_mmap() fails to allocate a buffer, it still invokes the event_mapped() callback of the related event. On X86 this might increase the perf_rdpmc_allowed reference counter. But nothing undoes this as perf_mmap_close() is never called in this case, which causes another reference count leak. Return early on failure to prevent that.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 5ffda7f3ed76ec8defc19d985e33b3b82ba07839affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 9b90a48c7de828a15c7a4fc565d46999c6e22d6baffected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < de85e72598d89880a02170a1cbc27b35a7d978a9affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 27d44145bd576bbef9bf6165bcd78128ec3e6cbdaffected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < f41e9eba77bf97626e04296dc5677d02816d2432affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 92043120a2e992800580855498ab8507e1b22db9affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 163b0d1a209fe0df5476c1df2330ca12b55abf92affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 7ff8521f30c4c2fcd4e88bd7640486602bf8a650affected1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb to < 07091aade394f690e7b655578140ef84d0e8d7b0affected
Linux Linux
Default version status: affected
4.0affected0 to < 4.0unaffected5.4.297 to ≤ 5.4.*unaffected5.10.241 to ≤ 5.10.*unaffected5.15.190 to ≤ 5.15.*unaffected6.1.148 to ≤ 6.1.*unaffected6.6.102 to ≤ 6.6.*unaffected6.12.42 to ≤ 6.12.*unaffected6.15.10 to ≤ 6.15.*unaffected6.16.1 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839 ↗
- https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b ↗
- https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9 ↗
- https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd ↗
- https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432 ↗
- https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9 ↗
- https://git.kernel.org/stable/c/163b0d1a209fe0df5476c1df2330ca12b55abf92 ↗
- https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650 ↗
- https://git.kernel.org/stable/c/07091aade394f690e7b655578140ef84d0e8d7b0 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗