Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before 9648adb1b3ece55c657d3a4f52bfee663b710dfe; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before 034a92c6a81048128fc7b18d278d52438a13902a; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before 8928239e5e2e460d95b8a0b89f61671625e7ece0; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before c9bdce2359b5f4986eb38d1e81865b3586cc20d2; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before b2d6b3db9d1cf80908964036dbe1c52a86b1afb1; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before e1fd0c42acfa22bb34d2ab6a111484f466ab8093; affected 8a8633978b842c88fbcfe00d4e5dde96048f630e before 4e910dbe36508654a896d5735b318c0b88172570 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 4.19.238 through 4.19.*; unaffected 5.4.189 through 5.4.*; unaffected 5.10.111 through 5.10.*; unaffected 5.15.34 through 5.15.*; unaffected 5.16.20 through 5.16.*; unaffected 5.17.3 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfe
- https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902a
- https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0
- https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2
- https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1
- https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093
- https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570