CVE-2024-26602: sched/membarrier: reduce the ability to hammer on sys_membarrier
First published: Sat Feb 24 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.307 | 4.19.307 |
| redhat/kernel | <5.4.269 | 5.4.269 |
| redhat/kernel | <5.10.210 | 5.10.210 |
| redhat/kernel | <5.15.149 | 5.15.149 |
| redhat/kernel | <6.1.79 | 6.1.79 |
| redhat/kernel | <6.6.18 | 6.6.18 |
| redhat/kernel | <6.7.6 | 6.7.6 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 | |
| F5 BIG-IP Next (LTM) | >=20.0.1<=20.1.0 | |
| F5 BIG-IP Next Central Manager | >=20.0.1<=20.2.0 | |
| F5 BIG-IP and BIG-IQ Centralized Management | >=17.1.0<=17.1.2 | |
| F5 BIG-IP and BIG-IQ Centralized Management | >=16.1.0<=16.1.5 | |
| F5 BIG-IP and BIG-IQ Centralized Management | >=15.1.0<=15.1.10 | |
| F5 BIG-IP and BIG-IQ Centralized Management | >=8.1.0<=8.3.0 | |
| F5 F5OS-A | =1.7.0>=1.5.1<=1.5.2 | |
| F5 F5OS-C | >=1.6.0<=1.6.2 | |
| F5 Traffix Systems Signaling Delivery Controller | =5.2 | |
| Linux kernel | >=4.14.0<4.19.307 | |
| Linux kernel | >=4.20.0<5.4.269 | |
| Linux kernel | >=5.5.0<5.10.210 | |
| Linux kernel | >=5.11.0<5.15.149 | |
| Linux kernel | >=5.16.0<6.1.79 | |
| Linux kernel | >=6.2.0<6.6.18 | |
| Linux kernel | >=6.7.0<6.7.6 |
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Reference Links
- https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265
- https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128a
- https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3
- https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577dee
- https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23
- https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71
- https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eea
- https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6
- https://launchpad.net/bugs/cve/CVE-2024-26602
- https://access.redhat.com/security/cve/CVE-2024-26602
- https://lore.kernel.org/linux-cve-announce/2024022414-CVE-2024-26602-5e76@gregkh/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2267696
- https://access.redhat.com/errata/RHSA-2024:1250
- https://access.redhat.com/errata/RHSA-2024:1249
- https://access.redhat.com/errata/RHSA-2024:1306
- https://access.redhat.com/errata/RHSA-2024:1332
- https://access.redhat.com/errata/RHSA-2024:1533
- https://access.redhat.com/errata/RHSA-2024:1532
- https://access.redhat.com/errata/RHSA-2024:1653
- https://access.redhat.com/errata/RHSA-2024:2008
- https://access.redhat.com/errata/RHSA-2024:2006
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2585
- https://access.redhat.com/errata/RHSA-2024:2582
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://access.redhat.com/errata/RHSA-2024:3810
- https://bugzilla.redhat.com/show_bug.cgi?id=2267695
- https://my.f5.com/manage/s/article/K000140297
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26602
- https://nvd.nist.gov/vuln/detail/CVE-2024-26602
- https://security-tracker.debian.org/tracker/CVE-2024-26602
- https://ubuntu.com/security/CVE-2024-26602
- https://git.kernel.org/linus/944d5fe50f3f03daacfea16300e656a1691c4a23
- https://www.vusec.net/projects/ghostrace/
Frequently Asked Questions
What is the severity of CVE-2024-26602?
CVE-2024-26602 has been identified as a significant vulnerability due to its potential to cause severe performance degradation on affected systems.
How do I fix CVE-2024-26602?
To fix CVE-2024-26602, upgrade to the specified kernel versions or later: kernel 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.79, or 6.6.18.
Which systems are affected by CVE-2024-26602?
CVE-2024-26602 affects specific versions of the Linux kernel and F5 products including BIG-IP and BIG-IQ Centralized Management.
What are the consequences of not addressing CVE-2024-26602?
Failing to address CVE-2024-26602 could result in excessive resource consumption and significant performance slowdowns across systems using the affected kernel versions.
Is there a workaround for CVE-2024-26602?
There are no documented workarounds for CVE-2024-26602; upgrading to the patched kernel versions is the recommended mitigation.
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