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posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path
In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in timer.it.cpu.pid. If the subsequent posix_cpu_timer_set() call fails, the function returns immediately without calling posix_cpu_timer_del() to release the pid reference, causing a leak. Fix it by calling posix_cpu_timer_del() before the unlock-and-return on the error path, consistent with the other exit paths in the same function.
References
Affected products
Linux
- <8a270b1258797f61b61da44f8bfd41a581b5c85b
- =<6.18.*
- <afed3cdc1cca133f804fcf57ff228974f424b23a
- =<5.15.*
- =<6.12.*
- <e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0
- =<7.1.*
- <d605d00085adc3fddf67de01dc2a44aebf1a3fb5
- <eb4cec29a78334d09bcfb41c0660cdd62ba05843
- <8f06363446c5d043c9a7c008b250040e9de98cf9
- <87bd2ad568e15b90d5f7d4bcd70342d05dad649c
- =<*
- <2.6.12
- ==2.6.12
- <7776f9226e99eb49d97492b0b445027cfcb189da
- =<6.1.*
- =<6.6.*
- =<5.10.*