CVE-2024-26602
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.
Does this matter?
Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265Patch
- https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128aPatch
- https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3Patch
- https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577deePatch
- https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23Patch
- https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71Patch
- https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eeaPatch
- https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6Patch
- https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265Patch
- https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128aPatch
- https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3Patch
- https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577deePatch
- https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23Patch
- https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71Patch
- https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eeaPatch
- https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.