Commit 49cf3ee
CIQ Kernel Automation
net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path
jira VULN-35526
cve CVE-2023-52703
commit-author Miko Larsson <mikoxyzzz@gmail.com>
commit c68f345
syzbot reported that act_len in kalmia_send_init_packet() is
uninitialized when passing it to the first usb_bulk_msg error path. Jiri
Pirko noted that it's pointless to pass it in the error path, and that
the value that would be printed in the second error path would be the
value of act_len from the first call to usb_bulk_msg.[1]
With this in mind, let's just not pass act_len to the usb_bulk_msg error
paths.
1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/
Fixes: d402612 ("net/usb: Add Samsung Kalmia driver for Samsung GT-B3730")
Reported-and-tested-by: syzbot+cd80c5ef5121bfe85b55@syzkaller.appspotmail.com
Signed-off-by: Miko Larsson <mikoxyzzz@gmail.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit c68f345)
Signed-off-by: CIQ Kernel Automation <ciq_kernel_automation@ciq.com>1 parent 69f3e73 commit 49cf3ee
1 file changed
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