[Bug 246945] ntfs-3g crashes after accessing files through nullfs mount (from jail)
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Tue Jun 2 21:14:46 UTC 2020
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246945
Bug ID: 246945
Summary: ntfs-3g crashes after accessing files through nullfs
mount (from jail)
Product: Ports & Packages
Version: Latest
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: Individual Port(s)
Assignee: ports-bugs at FreeBSD.org
Reporter: silver.edge.1942 at gmail.com
1) I've got an external USB HDD at /dev/da1 with NTFS partition on /dev/da1p2
Mount it:
# ntfs-3g /dev/da1p2 /mnt/seagate
2) Let one of its directories be accessible from jail myjail:
# mount -t nullfs /mnt/seagate/Blockchain/Bitcoin
/usr/local/jails/myjail/blockchain
3) In jail: execute: bitcoin-qt --datadir=/blockchain - OK.
Close bitcoin-qt. Execute again - ntfs-3g crashed on host.
It's a null pointer dereference. I've attached the core file.
gdb says:
Core was generated by `ntfs-3g /dev/da1p2 /mnt/seagate/'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00000008002727f5 in get_dirhandle (llfi=0x7fffffffe6a0,
fi=0x7fffffffe630) at fuse.c:3374
3374 fi->fh = dh->fh;
--
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