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CVE-2021-3739

Published: Mar 7, 2022

Modified: Aug 3, 2024

PUBLISHED

Description

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

Vendor	Product	Versions
n/a	kernel	affected `Fixed in v5.15-rc1 and above.`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=1997958

x_refsource_MISC

https://ubuntu.com/security/CVE-2021-3739

x_refsource_MISC

https://www.openwall.com/lists/oss-security/2021/08/25/3

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091

x_refsource_MISC

https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091

x_refsource_MISC

https://security.netapp.com/advisory/ntap-20220407-0006/

x_refsource_CONFIRM

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