CVE-2022-49084
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().
Does this matter?
Lower severity and a low EPSS score (0.66%). Track it; it rarely justifies an emergency change on its own.
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().
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.66% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902aPatch
- https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570Patch
- https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0Patch
- https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfePatch
- https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1Patch
- https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2Patch
- https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.