CVE-2022-49084
qede: confirm skb is allocated before using
Description
In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb().
INFO
Published Date :
Feb. 26, 2025, 7 a.m.
Last Modified :
Sept. 23, 2025, 6:33 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the kernel patch for the qede driver.
- Update the Linux kernel to a fixed version.
- Verify skb allocation in qede_build_skb().
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49084.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49084 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49084
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49084 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49084 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 23, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.189 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.17 up to (excluding) 5.17.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.111 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.34 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18 up to (excluding) 4.19.238 Added Reference Type kernel.org: https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfe Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb(). Added Reference https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902a Added Reference https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570 Added Reference https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0 Added Reference https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfe Added Reference https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1 Added Reference https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2 Added Reference https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093