CVE-2022-49927

MEDIUM EPSS 6.2%

Published May 1, 20251y ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published May 1, 2025 1y ago

Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: nfs4: Fix kmemleak when allocate slot failed If one of the slot allocate failed, should cleanup all the other allocated slots, otherwise, the allocated slots will leak: unreferenced object 0xffff8881115aa100 (size 64): comm ""mount.nfs"", pid 679, jiffies 4294744957 (age 115.037s) hex dump (first 32 bytes): 00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff ...s......Z..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000007a4c434a>] nfs4_find_or_create_slot+0x8e/0x130 [<000000005472a39c>] nfs4_realloc_slot_table+0x23f/0x270 [<00000000cd8ca0eb>] nfs40_init_client+0x4a/0x90 [<00000000128486db>] nfs4_init_client+0xce/0x270 [<000000008d2cacad>] nfs4_set_client+0x1a2/0x2b0 [<000000000e593b52>] nfs4_create_server+0x300/0x5f0 [<00000000e4425dd2>] nfs4_try_get_tree+0x65/0x110 [<00000000d3a6176f>] vfs_get_tree+0x41/0xf0 [<0000000016b5ad4c>] path_mount+0x9b3/0xdd0 [<00000000494cae71>] __x64_sys_mount+0x190/0x1d0 [<000000005d56bdec>] do_syscall_64+0x35/0x80 [<00000000687c9ae4>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector Local

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

6.2% percentile

Exploit & Patch Status

No Known Exploit

Patch Available

Weaknesses 1

CWE-401

Affected Products 10

Vendor	Product	Version	Range
linux	linux_kernel	*	≥3.12 – <4.9.333
linux	linux_kernel	*	≥4.10 – <4.14.299
linux	linux_kernel	*	≥4.15 – <4.19.265
linux	linux_kernel	*	≥4.20 – <5.4.224
linux	linux_kernel	*	≥5.5 – <5.10.154
linux	linux_kernel	*	≥5.11 – <5.15.78
linux	linux_kernel	*	≥5.16 – <6.0.8
linux	linux_kernel	6.1	any
linux	linux_kernel	6.1	any
linux	linux_kernel	6.1	any

References 8

git.kernel.org https://git.kernel.org/stable/c/24641993a7dce6b1628645f4e1d97ca06c9f765d

Patch
git.kernel.org https://git.kernel.org/stable/c/45aea4fbf61e205649c29200726b9f45c1718a67

Patch
git.kernel.org https://git.kernel.org/stable/c/7e8436728e22181c3f12a5dbabd35ed3a8b8c593

Patch
git.kernel.org https://git.kernel.org/stable/c/84b5cb476903003ae9ca88f32b57ff0eaefa6d4c

Patch
git.kernel.org https://git.kernel.org/stable/c/86ce0e93cf6fb4d0c447323ac66577c642628b9d

Patch
git.kernel.org https://git.kernel.org/stable/c/925cb538bd5851154602818dc80bf4b4d924c127

Patch
git.kernel.org https://git.kernel.org/stable/c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb

Patch
git.kernel.org https://git.kernel.org/stable/c/db333ae981fb8843c383aa7dbf62cc682597d401

Patch

Remediation

git.kernel.org https://git.kernel.org/stable/c/24641993a7dce6b1628645f4e1d97ca06c9f765d

Patch
git.kernel.org https://git.kernel.org/stable/c/45aea4fbf61e205649c29200726b9f45c1718a67

Patch
git.kernel.org https://git.kernel.org/stable/c/7e8436728e22181c3f12a5dbabd35ed3a8b8c593

Patch
git.kernel.org https://git.kernel.org/stable/c/84b5cb476903003ae9ca88f32b57ff0eaefa6d4c

Patch
git.kernel.org https://git.kernel.org/stable/c/86ce0e93cf6fb4d0c447323ac66577c642628b9d

Patch
git.kernel.org https://git.kernel.org/stable/c/925cb538bd5851154602818dc80bf4b4d924c127

Patch
git.kernel.org https://git.kernel.org/stable/c/aae35a0c8a775fa4afa6a4e7dab3f936f1f89bbb

Patch
git.kernel.org https://git.kernel.org/stable/c/db333ae981fb8843c383aa7dbf62cc682597d401

Patch