Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 5ffda7f3ed76ec8defc19d985e33b3b82ba07839; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 9b90a48c7de828a15c7a4fc565d46999c6e22d6b; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before de85e72598d89880a02170a1cbc27b35a7d978a9; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 27d44145bd576bbef9bf6165bcd78128ec3e6cbd; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before f41e9eba77bf97626e04296dc5677d02816d2432; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 92043120a2e992800580855498ab8507e1b22db9; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 163b0d1a209fe0df5476c1df2330ca12b55abf92; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 7ff8521f30c4c2fcd4e88bd7640486602bf8a650; affected 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 07091aade394f690e7b655578140ef84d0e8d7b0 |
| Linux / Linux | affected 4.0; unaffected 0 before 4.0; unaffected 5.4.297 through 5.4.*; unaffected 5.10.241 through 5.10.*; unaffected 5.15.190 through 5.15.*; unaffected 6.1.148 through 6.1.*; unaffected 6.6.102 through 6.6.*; unaffected 6.12.42 through 6.12.*; unaffected 6.15.10 through 6.15.*; unaffected 6.16.1 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.