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CVE-2022-48758
Disclosure Date: June 20, 2024 (last updated June 21, 2024)
In the Linux kernel, the following vulnerability has been resolved:
scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
The bnx2fc_destroy() functions are removing the interface before calling
destroy_work. This results multiple WARNings from sysfs_remove_group() as
the controller rport device attributes are removed too early.
Replace the fcoe_port's destroy_work queue. It's not needed.
The problem is easily reproducible with the following steps.
Example:
$ dmesg -w &
$ systemctl enable --now fcoe
$ fipvlan -s -c ens2f1
$ fcoeadm -d ens2f1.802
[ 583.464488] host2: libfc: Link down on port (7500a1)
[ 583.472651] bnx2fc: 7500a1 - rport not created Yet!!
[ 583.490468] ------------[ cut here ]------------
[ 583.538725] sysfs group 'power' not found for kobject 'rport-2:0-0'
[ 583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80
[ 583.607130] Modules linked in: dm_service_time 8021q garp mrp stp l…
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