bpf: Fix remap of arena. #7208
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bpf: Fix remap of arena. #7208
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Upstream branch: 143492f |
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=862302 expired. Closing PR. |
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Upstream branch: 143492f |
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The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close. Reported-by: Pengfei Xu <pengfei.xu@intel.com> Closes: https://lore.kernel.org/bpf/Zmuw29IhgyPNKnIM@xpf.sh.intel.com/ Fixes: 3174603 ("bpf: Introduce bpf_arena.") Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=862693 irrelevant now. Closing PR. |
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Pull request for series with
subject: bpf: Fix remap of arena.
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=862302