qede: confirm skb is allocated before using
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
exploitation probability
0.6%top 53% of all CVEs
observed exploitation
nono source reports it
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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902ahttps://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfehttps://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093