CVE-2024-35831

Summary

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

io_uring: Fix release of pinned pages when __io_uaddr_map fails

Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages.

I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux223ef474316466e9f61f6e0064f3a6fe4923a2c5 < 0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62affected
LinuxLinux223ef474316466e9f61f6e0064f3a6fe4923a2c5 < 712e2c8415f55a4a4ddaa98a430b87f624109f69affected
LinuxLinux223ef474316466e9f61f6e0064f3a6fe4923a2c5 < 4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3aaffected
LinuxLinux223ef474316466e9f61f6e0064f3a6fe4923a2c5 < 67d1189d1095d471ed7fa426c7e384a7140a5dd7affected
LinuxLinux3f3164ce6396138747984ee9e61158e248246300affected
LinuxLinux6.5.7 < 6.6affected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.23 <= 6.6.*unaffected
LinuxLinux6.7.11 <= 6.7.*unaffected
LinuxLinux6.8.2 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References