diff options
| author | Aleksandr Nogikh <nogikh@google.com> | 2025-07-16 19:02:46 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2025-07-17 12:38:59 +0000 |
| commit | 338f25e2408a360bd3af7f03091b1cbda0887a52 (patch) | |
| tree | 841da4021ff2cf2369ecf08a7be2251d948e3507 | |
| parent | 0d1223f1dc0faefcf010d6ee3e5a1e9571a1ad1a (diff) | |
executor: neutralize errors=panic for gfs2 mounts
Append errors=withdraw to the mount options so that gfs2 withdrawals
don't lead to kernel panics.
Closes #6189.
| -rw-r--r-- | executor/common_linux.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index f9d23ad29..dea1ba0c8 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -3151,6 +3151,9 @@ static long syz_mount_image( // For xfs we need nouuid because xfs has a global uuids table // and if two parallel executors mounts fs with the same uuid, second mount fails. strcat(opts, ",nouuid"); + } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { + // Otherwise ordinary withdrawals turn into kernel panics, see #6189. + strcat(opts, ",errors=withdraw"); } debug("syz_mount_image: size=%llu loop='%s' dir='%s' fs='%s' flags=%llu opts='%s'\n", (uint64)size, loopname, target, fs, (uint64)flags, opts); #if SYZ_EXECUTOR |