Riskcovery

CVE-2025-37802

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

State
Published
Severity
7.5 High
Published
May 8, 2025
Updated
Sep 14, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

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().

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 97aabdbf7ba82da20e698f0e62917fb206d42941Affected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 8f805b3746d2f41702c77cba22f94f8415fadd1aAffected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before cd161198e091e8a62b9bd631be970ea9a87d2d6aAffected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 1df0d4c616138784e033ad337961b6e1a6bcd999Affected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.26 through 6.12.*Not affected
  • 6.14.5 through 6.14.*Not affected
  • 6.15 and laterNot affected

References

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