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| author | Igor Russkikh <[email protected]> | 2023-12-13 09:40:44 +0000 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2023-12-14 11:10:59 +0000 |
| commit | 7bb26ea74aa86fdf894b7dbd8c5712c5b4187da7 (patch) | |
| tree | 8f07f7db1c19ddf79d6d342bd43d347aa41a5cac /tools/perf/scripts/python/gecko.py | |
| parent | appletalk: Fix Use-After-Free in atalk_ioctl (diff) | |
| download | kernel-7bb26ea74aa86fdf894b7dbd8c5712c5b4187da7.tar.gz kernel-7bb26ea74aa86fdf894b7dbd8c5712c5b4187da7.zip | |
net: atlantic: fix double free in ring reinit logic
Driver has a logic leak in ring data allocation/free,
where double free may happen in aq_ring_free if system is under
stress and driver init/deinit is happening.
The probability is higher to get this during suspend/resume cycle.
Verification was done simulating same conditions with
stress -m 2000 --vm-bytes 20M --vm-hang 10 --backoff 1000
while true; do sudo ifconfig enp1s0 down; sudo ifconfig enp1s0 up; done
Fixed by explicitly clearing pointers to NULL on deallocation
Fixes: 018423e90bee ("net: ethernet: aquantia: Add ring support code")
Reported-by: Linus Torvalds <[email protected]>
Closes: https://lore.kernel.org/netdev/CAHk-=wiZZi7FcvqVSUirHBjx0bBUZ4dFrMDVLc3+3HCrtq0rBA@mail.gmail.com/
Signed-off-by: Igor Russkikh <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/gecko.py')
0 files changed, 0 insertions, 0 deletions