CVE-2023-52498

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < f46eb832389f162ad13cb780d0b8cde93641990daffected
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < a1d62c775b07213c73f81ae842424c74dd14b5f0affected
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < e1c9d32c98309ae764893a481552d3f99d46cb34affected
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < e681e29d1f59a04ef773296e4bebb17b1b79f8feaffected
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < 9bd3dce27b01c51295b60e1433e1dadfb16649f7affected
LinuxLinux0552e05fdfea191a2cf3a0abd33574b5ef9ca818 < 7839d0078e0d5e6cc2fa0b0dfbee71de74f1e557affected
LinuxLinux5d56260c5e9fdbbba59655f63622f6159bf0e595affected
LinuxLinux76d587bd579a08ddcd51274c6d9fff4e885e184daffected
LinuxLinux7dce99d3182a1495bd14cac8403ee471ecdb7ea4affected
LinuxLinux0390e974020ebbbb64580fc205ecc892d1fdd462affected
LinuxLinux4.14.171 < 4.15affected
LinuxLinux4.19.103 < 4.20affected
LinuxLinux5.4.19 < 5.5affected
LinuxLinux5.5.3 < 5.6affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.76 <= 6.1.*unaffected
LinuxLinux6.6.15 <= 6.6.*unaffected
LinuxLinux6.7.3 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References