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| author | Song Yoong Siang <[email protected]> | 2021-08-25 00:57:42 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-08-25 09:59:39 +0000 |
| commit | 2b9fff64f03219d78044d1ab40dde8e3d42e968a (patch) | |
| tree | 6547909ef56bb334039ce53698e8d113d6223973 /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | net: stmmac: fix kernel panic due to NULL pointer dereference of xsk_pool (diff) | |
| download | kernel-2b9fff64f03219d78044d1ab40dde8e3d42e968a.tar.gz kernel-2b9fff64f03219d78044d1ab40dde8e3d42e968a.zip | |
net: stmmac: fix kernel panic due to NULL pointer dereference of buf->xdp
Ensure a valid XSK buffer before proceed to free the xdp buffer.
The following kernel panic is observed without this patch:
RIP: 0010:xp_free+0x5/0x40
Call Trace:
stmmac_napi_poll_rxtx+0x332/0xb30 [stmmac]
? stmmac_tx_timer+0x3c/0xb0 [stmmac]
net_rx_action+0x13d/0x3d0
__do_softirq+0xfc/0x2fb
? smpboot_register_percpu_thread+0xe0/0xe0
run_ksoftirqd+0x32/0x70
smpboot_thread_fn+0x1d8/0x2c0
kthread+0x169/0x1a0
? kthread_park+0x90/0x90
ret_from_fork+0x1f/0x30
---[ end trace 0000000000000002 ]---
Fixes: bba2556efad6 ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: <[email protected]> # 5.13.x
Suggested-by: Ong Boon Leong <[email protected]>
Signed-off-by: Song Yoong Siang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
0 files changed, 0 insertions, 0 deletions