CVE-2025-37802

Summary

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"

wait_event_timeout() will set the state of the current task to TASK_UNINTERRUPTIBLE, before doing the condition check. This means that ksmbd_durable_scavenger_alive() will try to acquire the mutex while already in a sleeping state. The scheduler warns us by giving the following warning:

do not call blocking ops when !TASK_RUNNING; state=2 set at [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0 WARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160

mutex lock is not needed in ksmbd_durable_scavenger_alive().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 8f805b3746d2f41702c77cba22f94f8415fadd1aaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < cd161198e091e8a62b9bd631be970ea9a87d2d6aaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 1df0d4c616138784e033ad337961b6e1a6bcd999affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux6.12.26 <= 6.12.*unaffected
LinuxLinux6.14.5 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

References