CVE-2024-26602

Summary

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

sched/membarrier: reduce the ability to hammer on sys_membarrier

On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < 3cd139875e9a7688b3fc715264032620812a5fa3affected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < 2441a64070b85c14eecc3728cc87e883f953f265affected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < db896bbe4a9c67cee377e5f6a743350d3ae4acf6affected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < 50fb4e17df319bb33be6f14e2a856950c1577deeaffected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < 24ec7504a08a67247fbe798d1de995208a8c128aaffected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < b6a2a9cbb67545c825ec95f06adb7ff300a2ad71affected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < c5b2063c65d05e79fad8029324581d86cfba7eeaaffected
LinuxLinux22e4ebb975822833b083533035233d128b30e98f < 944d5fe50f3f03daacfea16300e656a1691c4a23affected
LinuxLinux4.14affected
LinuxLinux0 < 4.14unaffected
LinuxLinux4.19.307 <= 4.19.*unaffected
LinuxLinux5.4.269 <= 5.4.*unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.79 <= 6.1.*unaffected
LinuxLinux6.6.18 <= 6.6.*unaffected
LinuxLinux6.7.6 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References