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CVE-2026-43393

Опубликовано: 08 мая 2026
Источник: redhat
CVSS3: 5.5
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

A flaw was found in the Linux kernel's btrfs file system. This vulnerability, a memory leak, occurs in the btrfs_map_block() function. When an early error return (-EINVAL) happens, the allocated chunk map is not properly freed, leading to a resource leak. This can potentially lead to system instability or a Denial of Service (DoS) condition due to memory exhaustion.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelOut of support scope
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

Статус:

Low
Дефект:
CWE-772
https://bugzilla.redhat.com/show_bug.cgi?id=2468217kernel: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()

EPSS

Процентиль: 2%
0.00122
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
ubuntu
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

CVSS3: 5.5
nvd
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

CVSS3: 5.5
debian
3 месяца назад

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

CVSS3: 5.5
github
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

suse-cvrf
около 1 месяца назад

Security update for the Linux Kernel

EPSS

Процентиль: 2%
0.00122
Низкий

5.5 Medium

CVSS3

Уязвимость CVE-2026-43393