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CVE-2024-26601

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-6895-3
Posted Jul 19, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6895-3 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-52631, CVE-2023-52637, CVE-2023-52638, CVE-2023-52643, CVE-2023-6270, CVE-2024-0841, CVE-2024-1151, CVE-2024-23307, CVE-2024-24861, CVE-2024-26593, CVE-2024-26600, CVE-2024-26601, CVE-2024-26602, CVE-2024-26603
SHA-256 | c2cdeb8147a5ff711973b3c8fee175db573062bd9897685481c20a336ce711eb
Ubuntu Security Notice USN-6895-2
Posted Jul 16, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6895-2 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-52631, CVE-2023-52637, CVE-2023-52638, CVE-2023-52643, CVE-2023-6270, CVE-2024-0841, CVE-2024-1151, CVE-2024-23307, CVE-2024-24861, CVE-2024-26593, CVE-2024-26601, CVE-2024-26602, CVE-2024-26603, CVE-2024-26642
SHA-256 | cb98f5e56d9db06a20eb3399970fe6e4dd6d1c03b16d42a3b8b246d6254a725f
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