Follow-up fix for potential error pointer dereference in propagate_to_outer_instance() #6157
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…to_outer_instance() propagate_to_outer_instance() calls get_outer_instance() and then uses the returned pointer to reset/commit stack write marks. When get_outer_instance() fails (e.g., __lookup_instance() returns -ENOMEM), it may return an ERR_PTR. Without a check, the code dereferences this error pointer. Protect the call with IS_ERR() and propagate the error. Fixes: b3698c3 ("bpf: callchain sensitive stack liveness tracking using CFG") Reported-by: kernel-patches-review-bot (kernel-patches/bpf#10006 (comment)) Signed-off-by: Shardul Bankar <[email protected]>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=1012274 expired. Closing PR. |
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Pull request for series with
subject: Follow-up fix for potential error pointer dereference in propagate_to_outer_instance()
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=1012274