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CVE-2021-46949

Good to know:

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Date: February 27, 2024

In the Linux kernel, the following vulnerability has been resolved: sfc: farch: fix TX queue lookup in TX flush done handling We're starting from a TXQ instance number ('qid'), not a TXQ type, so efx_get_tx_queue() is inappropriate (and could return NULL, leading to panics).

Language: C

Severity Score

Related Resources (6)

https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647
https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a
https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170
https://nvd.nist.gov/vuln/detail/CVE-2021-46949
https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac
https://www.mend.io/vulnerability-database/CVE-2021-46949

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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