netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in net/sched/sch_taprio.c:1722:18
shift exponent -2147418108 is negative
CPU: 1 PID: 6162 Comm: syz-executor308 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:386
 taprio_parse_tc_entry net/sched/sch_taprio.c:1722 [inline]
 taprio_parse_tc_entries net/sched/sch_taprio.c:1768 [inline]
 taprio_change+0x934/0x3bf0 net/sched/sch_taprio.c:1877
 taprio_init+0x758/0x9c0 net/sched/sch_taprio.c:2134
 qdisc_create+0x804/0xe54 net/sched/sch_api.c:1355
 tc_modify_qdisc+0xa18/0x1870
 rtnetlink_rcv_msg+0x748/0xdbc net/core/rtnetlink.c:6617
 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2543
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6635
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0x83c/0xb20 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x56c/0x840 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x26c/0x33c net/socket.c:2667
 __do_sys_sendmsg net/socket.c:2676 [inline]
 __se_sys_sendmsg net/socket.c:2674 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
---[ end trace ]---
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in net/sched/sch_taprio.c:1727:15
shift exponent -2147418108 is negative
CPU: 1 PID: 6162 Comm: syz-executor308 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:386
 taprio_parse_tc_entry net/sched/sch_taprio.c:1727 [inline]
 taprio_parse_tc_entries net/sched/sch_taprio.c:1768 [inline]
 taprio_change+0x96c/0x3bf0 net/sched/sch_taprio.c:1877
 taprio_init+0x758/0x9c0 net/sched/sch_taprio.c:2134
 qdisc_create+0x804/0xe54 net/sched/sch_api.c:1355
 tc_modify_qdisc+0xa18/0x1870
 rtnetlink_rcv_msg+0x748/0xdbc net/core/rtnetlink.c:6617
 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2543
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6635
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0x83c/0xb20 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x56c/0x840 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x26c/0x33c net/socket.c:2667
 __do_sys_sendmsg net/socket.c:2676 [inline]
 __se_sys_sendmsg net/socket.c:2674 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
---[ end trace ]---