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.
Product status
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 5ffda7f3ed76ec8defc19d985e33b3b82ba07839
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 9b90a48c7de828a15c7a4fc565d46999c6e22d6b
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before de85e72598d89880a02170a1cbc27b35a7d978a9
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 27d44145bd576bbef9bf6165bcd78128ec3e6cbd
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before f41e9eba77bf97626e04296dc5677d02816d2432
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 92043120a2e992800580855498ab8507e1b22db9
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 163b0d1a209fe0df5476c1df2330ca12b55abf92
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 7ff8521f30c4c2fcd4e88bd7640486602bf8a650
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb before 07091aade394f690e7b655578140ef84d0e8d7b0
4.0
Any version before 4.0
5.4.297
5.10.241
5.15.190
6.1.148
6.6.102
6.12.42
6.15.10
6.16.1
6.17
References
git.kernel.org/...c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839
git.kernel.org/...c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b
git.kernel.org/...c/de85e72598d89880a02170a1cbc27b35a7d978a9
git.kernel.org/...c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd
git.kernel.org/...c/f41e9eba77bf97626e04296dc5677d02816d2432
git.kernel.org/...c/92043120a2e992800580855498ab8507e1b22db9
git.kernel.org/...c/163b0d1a209fe0df5476c1df2330ca12b55abf92
git.kernel.org/...c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650
git.kernel.org/...c/07091aade394f690e7b655578140ef84d0e8d7b0
