CVE-2022-48977

MEDIUM EPSS 15.4%
Published Oct 21, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: can: af_can: fix NULL pointer dereference in can_rcv_filter Analogue to commit 8aa59e355949 ("can: af_can: fix NULL pointer dereference in can_rx_register()") we need to check for a missing initialization of ml_priv in the receive path of CAN frames. Since commit 4e096a18867a ("net: introduce CAN specific pointer in the struct net_device") the check for dev->type to be ARPHRD_CAN is not sufficient anymore since bonding or tun netdevices claim to be CAN devices but do not initialize ml_priv accordingly.

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
15.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.4.110  –  <5.4.227
linuxlinux_kernel*≥5.10.28  –  <5.10.159
linuxlinux_kernel*≥5.11.12  –  <5.15.83
linuxlinux_kernel*≥5.16  –  <6.0.13
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557
    Patch