CVE-2022-49497

net: remove two BUG() from skb_checksum_help()

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

MITRE
TN

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace
them with more friendly WARN_ON_ONCE() since skb_checksum_help()
can instead return an error code. Note that syzbot will still crash there, until real bug is fixed.

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code. Note that syzbot will still crash there, until real bug is fixed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-02-26 CVE Reserved
2025-02-26 CVE Published
2025-10-01 CVE Updated
2025-11-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/312c43e98ed190bd8fd7a71a0addf9539d5b8ab1	2022-06-09
https://git.kernel.org/stable/c/6320ae1b5876c30bf98203b6a5abe8b5c45e6a04	2022-06-09
https://git.kernel.org/stable/c/d5281245f3502e960cb6b89348767b935379cee3	2022-06-09
https://git.kernel.org/stable/c/b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73	2022-06-09
https://git.kernel.org/stable/c/d7ea0d9df2a6265b2b180d17ebc64b38105968fc	2022-05-11

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.121 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.121"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.46 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.46"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.17.14 Search vendor "Linux" for product "Linux Kernel" and version " < 5.17.14"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.18.3 Search vendor "Linux" for product "Linux Kernel" and version " < 5.18.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.19 Search vendor "Linux" for product "Linux Kernel" and version " < 5.19"		en		Affected