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CVE-2026-63954

Опубликовано: 19 июл. 2026
Источник: redhat
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

A flaw was found in the Linux kernel's High Performance File System (HPFS) component. This vulnerability occurs when the hpfs_map_dnode_bitmap function fails, leading to the system attempting to release an uninitialized buffer. An attacker could potentially trigger this condition, resulting in a system crash and causing a Denial of Service (DoS).

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

Дефект:
CWE-824
https://bugzilla.redhat.com/show_bug.cgi?id=2502407kernel: hpfs: fix a crash if hpfs_map_dnode_bitmap fails

EPSS

Процентиль: 6%
0.00164
Низкий

Связанные уязвимости

CVSS3: 7.8
ubuntu
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

CVSS3: 7.8
nvd
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

msrc
12 дней назад

hpfs: fix a crash if hpfs_map_dnode_bitmap fails

CVSS3: 7.8
debian
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: h ...

CVSS3: 7.8
github
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

EPSS

Процентиль: 6%
0.00164
Низкий