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CVE-2024-26602— sched/membarrier: reduce the ability to hammer on sys_membarrier

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于调用sys_membarrier频率太高会导致拒绝服务。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 22e4ebb975822833b083533035233d128b30e98f< 3cd139875e9a7688b3fc715264032620812a5fa3 affected
22e4ebb975822833b083533035233d128b30e98f< 2441a64070b85c14eecc3728cc87e883f953f265 affected
22e4ebb975822833b083533035233d128b30e98f< db896bbe4a9c67cee377e5f6a743350d3ae4acf6 affected
22e4ebb975822833b083533035233d128b30e98f< 50fb4e17df319bb33be6f14e2a856950c1577dee affected
22e4ebb975822833b083533035233d128b30e98f< 24ec7504a08a67247fbe798d1de995208a8c128a affected
22e4ebb975822833b083533035233d128b30e98f< b6a2a9cbb67545c825ec95f06adb7ff300a2ad71 affected
22e4ebb975822833b083533035233d128b30e98f< c5b2063c65d05e79fad8029324581d86cfba7eea affected
22e4ebb975822833b083533035233d128b30e98f< 944d5fe50f3f03daacfea16300e656a1691c4a23 affected
… +10 more rows
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I. Basic Information for CVE-2024-26602

Vulnerability Information
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Vulnerability Title
sched/membarrier: reduce the ability to hammer on sys_membarrier
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于调用sys_membarrier频率太高会导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 22e4ebb975822833b083533035233d128b30e98f ~ 3cd139875e9a7688b3fc715264032620812a5fa3 -
Linux Linux 4.14 -

II. Public POCs for CVE-2024-26602

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III. Intelligence Information for CVE-2024-26602

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Mailing List Discussions for CVE-2024-26602 (2)

Other References for CVE-2024-26602 (7)

Same Patch Batch · Linux · 2024-02-24 · 6 CVEs total

CVE-2024-26601 7.8 HIGH ext4: regenerate buddy after block freeing failed if under fc replay
CVE-2024-26605 PCI/ASPM: Fix deadlock when enabling ASPM
CVE-2024-26603 x86/fpu: Stop relying on userspace for info to fault in xsave buffer
CVE-2024-26604 Revert "kobject: Remove redundant checks for whether ktype is NULL"
CVE-2024-26600 phy: ti: phy-omap-usb2: Fix NULL pointer dereference for SRP

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26602

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