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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-52498

PM: sleep: Fix possible deadlocks in core system-wide PM code

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: PM: sleep: Fix possible deadlocks in core system-wide PM code It is reported that in low-memory situations the system-wide resume core code deadlocks, because async_schedule_dev() executes its argument function synchronously if it cannot allocate memory (and not only in that case) and that function attempts to acquire a mutex that is already held. Executing the argument function synchronously from within dpm_async_fn() may also be problematic for ordering reasons (it may cause a consumer device's resume callback to be invoked before a requisite supplier device's one, for example). Address this by changing the code in question to use async_schedule_dev_nocall() for scheduling the asynchronous execution of device suspend and resume functions and to directly run them synchronously if async_schedule_dev_nocall() returns false.

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

  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < f46eb832389f162ad13cb780d0b8cde93641990daffected
  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < a1d62c775b07213c73f81ae842424c74dd14b5f0affected
  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < e1c9d32c98309ae764893a481552d3f99d46cb34affected
  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < e681e29d1f59a04ef773296e4bebb17b1b79f8feaffected
  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < 9bd3dce27b01c51295b60e1433e1dadfb16649f7affected
  • 0552e05fdfea191a2cf3a0abd33574b5ef9ca818 to < 7839d0078e0d5e6cc2fa0b0dfbee71de74f1e557affected
  • 5d56260c5e9fdbbba59655f63622f6159bf0e595affected
  • 76d587bd579a08ddcd51274c6d9fff4e885e184daffected
  • 7dce99d3182a1495bd14cac8403ee471ecdb7ea4affected
  • 0390e974020ebbbb64580fc205ecc892d1fdd462affected
  • 4.14.171 to < 4.15affected
  • 4.19.103 to < 4.20affected
  • 5.4.19 to < 5.5affected
  • 5.5.3 to < 5.6affected

Linux Linux

Default version status: affected

  • 5.6affected
  • 0 to < 5.6unaffected
  • 5.10.210 to ≤ 5.10.*unaffected
  • 5.15.149 to ≤ 5.15.*unaffected
  • 6.1.76 to ≤ 6.1.*unaffected
  • 6.6.15 to ≤ 6.6.*unaffected
  • 6.7.3 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References