wifi: cfg80211: check A-MSDU format more carefully

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If it looks like there's another subframe in the A-MSDU
but the header isn't fully there, we can end up reading
data out of bounds, only to discard later. Make this a
bit more careful and check if the subframe header can
even be present.

Reported-by: syzbot+d050d437fe47d479d210@syzkaller.appspotmail.com
Link: https://msgid.link/20240226203405.a731e2c95e38.I82ce7d8c0cc8970ce29d0a39fdc07f1ffc425be4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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This commit is contained in:

Johannes Berg 2024-02-26 20:34:06 +01:00

parent 4223675d2b

commit 9ad7974856

1 changed files with 10 additions and 4 deletions

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net/wireless/util.c

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