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CVE-2024-26601— ext4: regenerate buddy after block freeing failed if under fc replay

EPSS 0.02% · P6
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I. Basic Information for CVE-2024-26601

Vulnerability Information
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Vulnerability Title
ext4: regenerate buddy after block freeing failed if under fc replay
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: regenerate buddy after block freeing failed if under fc replay This mostly reverts commit 6bd97bf273bd ("ext4: remove redundant mb_regenerate_buddy()") and reintroduces mb_regenerate_buddy(). Based on code in mb_free_blocks(), fast commit replay can end up marking as free blocks that are already marked as such. This causes corruption of the buddy bitmap so we need to regenerate it in that case.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 ext4 存在安全漏洞。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0983142c5f17a62055ec851372273c3bc77e4788 ~ 94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a -
LinuxLinux 5.11 -

II. Public POCs for CVE-2024-26601

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III. Intelligence Information for CVE-2024-26601

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

CVE-2024-26605PCI/ASPM: Fix deadlock when enabling ASPM
CVE-2024-26603x86/fpu: Stop relying on userspace for info to fault in xsave buffer
CVE-2024-26604Revert "kobject: Remove redundant checks for whether ktype is NULL"
CVE-2024-26602sched/membarrier: reduce the ability to hammer on sys_membarrier
CVE-2024-26600phy: ti: phy-omap-usb2: Fix NULL pointer dereference for SRP

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26601

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