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https://github.com/checkpoint-restore/criu.git
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fa79188901
When CRIU runs as root and restores a pipe, the pipe inode is created with root ownership. If the restored process runs as a non-root user and tries to reopen the pipe via /proc/self/fd/<n>, the open() fails with EACCES because the pipe inode is owned by root. Fix this by saving the pipe's uid/gid during dump (from stat) and restoring ownership with fchown() after creating the pipe. This matches how memfds and TTYs already handle ownership restoration. Fixes: #2984 Signed-off-by: Ahmed Elaidy <elaidya225@gmail.com>
15 lines
316 B
Protocol Buffer
15 lines
316 B
Protocol Buffer
// SPDX-License-Identifier: MIT
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syntax = "proto2";
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import "opts.proto";
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import "fown.proto";
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message pipe_entry {
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required uint32 id = 1;
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required uint32 pipe_id = 2;
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required uint32 flags = 3 [(criu).hex = true];
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required fown_entry fown = 4;
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optional uint32 uid = 5;
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optional uint32 gid = 6;
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}
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