freebsd-src/cddl
Alan Somers 0b294a386d Fix zfsd with the device_removal pool feature.
Previously zfsd would crash in the presence of a pool with a
top-level-vdev that had previously been removed.  The crash happened
because the configuration nvlist of such a TLV contains an empty
ZPOOL_CONFIG_CHILDREN array, which led to a pop_front from an empty
list, which has undefined behavior.

The crash only happened in stable/14 and later, probably do to
differences in libcxx, but the change should be MFCed anyway.

PR:		273663
Reported by:	Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
MFC after:	1 week
Sponsored by:	Axcient
Reviewed by:	mav
Differential Revision: https://reviews.freebsd.org/D41818
2023-09-12 08:46:12 -06:00
..
compat/opensolaris Remove $FreeBSD$: one-line .c comment pattern 2023-08-16 11:54:29 -06:00
contrib/opensolaris dtrace: remove dead code for PR_REQUESTED 2023-08-01 12:28:50 -05:00
lib zfs: merge openzfs/zfs@804414aad 2023-08-26 23:51:42 +02:00
sbin Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
share Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
tests Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
usr.bin Remove $FreeBSD$: two-line nroff pattern 2023-08-16 11:55:10 -06:00
usr.libexec Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
usr.sbin Fix zfsd with the device_removal pool feature. 2023-09-12 08:46:12 -06:00
Makefile Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
Makefile.inc Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00