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CVE PROGRAM SOURCE RECORDUnscored

CVE-2022-49798

tracing: Fix race where eprobes can be called before the event

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix race where eprobes can be called before the event The flag that tells the event to call its triggers after reading the event is set for eprobes after the eprobe is enabled. This leads to a race where the eprobe may be triggered at the beginning of the event where the record information is NULL. The eprobe then dereferences the NULL record causing a NULL kernel pointer bug. Test for a NULL record to keep this from happening.

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

  • 7491e2c442781a1860181adb5ab472a52075f393 to < 7291dec4f2d17a2d3fd1f789fb41e58476539f21affected
  • 7491e2c442781a1860181adb5ab472a52075f393 to < 73f5191467ffe3af82f27fe0ea6a8c2fac724d3faffected
  • 7491e2c442781a1860181adb5ab472a52075f393 to < 94eedf3dded5fb472ce97bfaf3ac1c6c29c35d26affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 5.15.80 to ≤ 5.15.*unaffected
  • 6.0.10 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References