On Sat, Jun 08, 2024 at 05:28:26PM -0700, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: 8867bbd4a056 mm: arm64: Fix the out-of-bounds issue in con.. > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=10961932980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3b4350cf56c61c80 > dashboard link: https://syzkaller.appspot.com/bug?extid=5f996b83575ef4058638 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > userspace arch: arm64 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15be6dce980000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=101ca30a980000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/6ea21f50498b/disk-8867bbd4.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/e2fed09364aa/vmlinux-8867bbd4.xz > kernel image: https://storage.googleapis.com/syzbot-assets/4860173c7a18/Image-8867bbd4.gz.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+5f996b83575ef4058638@xxxxxxxxxxxxxxxxxxxxxxxxx > > cdc_wdm 1-1:1.0: nonzero urb status received: -71 > cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes > cdc_wdm 1-1:1.0: nonzero urb status received: -71 > cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes > watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor782:6625] #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git 8867bbd4a056 Index: usb-devel/drivers/usb/class/cdc-wdm.c =================================================================== --- usb-devel.orig/drivers/usb/class/cdc-wdm.c +++ usb-devel/drivers/usb/class/cdc-wdm.c @@ -260,6 +260,9 @@ static void wdm_int_callback(struct urb case -ESHUTDOWN: case -ENOENT: case -ECONNRESET: + case -EPROTO: + case -EILSEQ: + case -ETIME: return; /* unplug */ case -EPIPE: set_bit(WDM_INT_STALL, &desc->flags);
