https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281279
Bug ID: 281279
Summary: nfscl: panic: MSan: Uninitialized stack memory in
nfscl_cberrmap
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: asom...@freebsd.org
I mount /usr/home over NFS. When I boot with the GENERIC-KMSAN kernel, it
panics as soon as I run the first command like this:
panic: MSan: Uninitialized stack memory in copyout():arg1, offset 28/224, addr
0xfffffe00751d6c54, from nfscl_cberrmap+0xb86
cpuid = 7
time = 1725498654
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x99/frame 0xfffffe00751d67d0
vpanic() at vpanic+0x56e/frame 0xfffffe00751d6960
panic() at panic+0x1dd/frame 0xfffffe00751d6a70
kmsan_report_hook() at kmsan_report_hook+0x28f/frame 0xfffffe00751d6bf0
kmsan_copyout() at kmsan_copyout+0x1f1/frame 0xfffffe00751d6c20
sys_fstat() at sys_fstat+0x12a/frame 0xfffffe00751d6d60
amd64_syscall() at amd64_syscall+0x706/frame 0xfffffe00751d6f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00751d6f30
--- syscall (551, FreeBSD ELF64, fstat), rip = 0x82794501a, rsp = 0x8206ec718,
rbp = 0x8206ec810 ---
KDB: enter: panic
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