Description
In the Linux kernel, the following vulnerability has been resolved: cachestat: fix page cache statistics permission checking When the 'cachestat()' system call was added in commit cf264e1329fb ("cachestat: implement cachestat syscall"), it was meant to be a much more convenient (and performant) version of mincore() that didn't need mapping things into the user virtual address space in order to work. But it ended up missing the "check for writability or ownership" fix for mincore(), done in commit 134fca9063ad ("mm/mincore.c: make mincore() more conservative"). This just adds equivalent logic to 'cachestat()', modified for the file context (rather than vma).
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
cf264e1329fb0307e044f7675849f9f38b44c11a to < 7d6405c13b0d8a8367cd8df63f118b619a3f0dd2affectedcf264e1329fb0307e044f7675849f9f38b44c11a to < 780ab8329672464984cf1344bd5c3993af0226c7affectedcf264e1329fb0307e044f7675849f9f38b44c11a to < 97153a05077f618f7471f50a78158602badccb30affectedcf264e1329fb0307e044f7675849f9f38b44c11a to < 5f537664e705b0bf8b7e329861f20128534f6a83affected
Linux Linux
Default version status: affected
6.5affected0 to < 6.5unaffected6.6.75 to ≤ 6.6.*unaffected6.12.12 to ≤ 6.12.*unaffected6.13.1 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected