CVE-2024-41081

Summary

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

ila: block BH in ila_output()

As explained in commit 1378817486d6 ("tipc: block BH before using dst_cache"), net/core/dst_cache.c helpers need to be called with BH disabled.

ila_output() is called from lwtunnel_output() possibly from process context, and under rcu_read_lock().

We might be interrupted by a softirq, re-enter ila_output() and corrupt dst_cache data structures.

Fix the race by using local_bh_disable().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < 7435bd2f84a25aba607030237261b3795ba782daaffected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < 96103371091c6476eb07f4c66624bdd1b42f758aaffected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < a0cafb7b0b94d18e4813ee4b712a056f280e7b5aaffected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < feac2391e26b086f73be30e9b1ab215eada8d830affected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < b4eb25a3d70df925a9fa4e82d17a958a0a228f5faffected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < 522c3336c2025818fa05e9daf0ac35711e55e316affected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < 9f9c79d8e527d867e0875868b14fb76e6011e70caffected
LinuxLinux79ff2fc31e0f6a52eeb67fb89fba87e822b9b7b5 < cf28ff8e4c02e1ffa850755288ac954b6ff0db8caffected
LinuxLinux4.10affected
LinuxLinux0 < 4.10unaffected
LinuxLinux4.19.319 <= 4.19.*unaffected
LinuxLinux5.4.281 <= 5.4.*unaffected
LinuxLinux5.10.223 <= 5.10.*unaffected
LinuxLinux5.15.164 <= 5.15.*unaffected
LinuxLinux6.1.101 <= 6.1.*unaffected
LinuxLinux6.6.42 <= 6.6.*unaffected
LinuxLinux6.9.11 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References