https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281291
Bug ID: 281291
Summary: zfs: panic: MSan: Uninitialized malloc memory from
zfs_acl_chmod
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
I tried to run the ZFS test suite with a GENERIC-KMSAN kernel. The
sys/cddl/zfs/tests/bootfs/bootfs_test:bootfs_005_neg test paniced like this:
panic: MSan: Uninitialized malloc memory from zfs_acl_chmod+0x2cd
cpuid = 6
time = 1725502132
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x99/frame 0xfffffe00b4c9c540
vpanic() at vpanic+0x56e/frame 0xfffffe00b4c9c6d0
panic() at panic+0x1dd/frame 0xfffffe00b4c9c7e0
__msan_warning() at __msan_warning+0x244/frame 0xfffffe00b4c9c930
lzjb_compress() at lzjb_compress+0x9f6/frame 0xfffffe00b4c9ca70
zio_compress_data() at zio_compress_data+0x388/frame 0xfffffe00b4c9cb40
zio_write_compress() at zio_write_compress+0x12bd/frame 0xfffffe00b4c9cca0
zio_execute() at zio_execute+0x4e0/frame 0xfffffe00b4c9cd30
taskqueue_run_locked() at taskqueue_run_locked+0x607/frame 0xfffffe00b4c9ce30
taskqueue_thread_loop() at taskqueue_thread_loop+0x29e/frame 0xfffffe00b4c9cea0
fork_exit() at fork_exit+0x1ee/frame 0xfffffe00b4c9cf30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00b4c9cf30
--- trap 0x5a5a5a5a, rip = 0x5a5a5a5a5a5a5a5a, rsp = 0x5a5a5a5a5a5a5a5a, rbp =
0x5a5a5a5a5a5a5a5a ---
KDB: enter: panic
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