CVE-2024-49855

Summary

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

nbd: fix race between timeout and normal completion

If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered.

Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2895f1831e911ca87d4efdf43e35eb72a0c7e66e < 9c25faf72d780a9c71081710cd48759d61ff6e9baffected
LinuxLinux2895f1831e911ca87d4efdf43e35eb72a0c7e66e < 6e73b946a379a1dfbb62626af93843bdfb53753daffected
LinuxLinux2895f1831e911ca87d4efdf43e35eb72a0c7e66e < 5236ada8ebbd9e7461f17477357582f5be4f46f7affected
LinuxLinux2895f1831e911ca87d4efdf43e35eb72a0c7e66e < 9a74c3e6c0d686c26ba2aab66d15ddb89dc139ccaffected
LinuxLinux2895f1831e911ca87d4efdf43e35eb72a0c7e66e < c9ea57c91f03bcad415e1a20113bdb2077bcf990affected
LinuxLinuxcdf62c535a9bfd5ff0eef4b91669da39d8abc0c3affected
LinuxLinux5171ef20bae852ff38f4cfdb368bcdcc744776d0affected
LinuxLinux5.17.15 < 5.18affected
LinuxLinux5.18.4 < 5.19affected
LinuxLinux5.19affected
LinuxLinux0 < 5.19unaffected
LinuxLinux6.1.113 <= 6.1.*unaffected
LinuxLinux6.6.54 <= 6.6.*unaffected
LinuxLinux6.10.13 <= 6.10.*unaffected
LinuxLinux6.11.2 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References