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charset="UTF-8" syzbot has found a reproducer for the following issue on: HEAD commit: 4982d3552a3b Merge tag 'sound-7.3-rc4' of git://git.kernel.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=158afbf9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=84649d3ff8d550cb dashboard link: https://syzkaller.appspot.com/bug?extid=adb0bf16414b8bb2d799 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fa7bf9580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+adb0bf16414b8bb2d799@syzkaller.appspotmail.com ------------[ cut here ]------------ current_phy->suspended WARNING: drivers/net/ieee802154/mac802154_hwsim.c:266 at hwsim_hw_xmit+0xcbf/0x1540 drivers/net/ieee802154/mac802154_hwsim.c:266, CPU#0: syz-executor682/6038 Modules linked in: CPU: 0 UID: 0 PID: 6038 Comm: syz-executor682 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:hwsim_hw_xmit+0xcbf/0x1540 drivers/net/ieee802154/mac802154_hwsim.c:266 Code: 48 c7 c2 40 3f c0 8c be 52 03 00 00 48 c7 c7 a0 3f c0 8c c6 05 8f 23 c6 09 01 e8 7c 1b 80 fa e9 c6 f8 ff ff e8 52 5a a5 fa 90 <0f> 0b 90 e9 11 f4 ff ff e8 44 5a a5 fa e8 1f 0a 89 fa 31 ff 89 c5 RSP: 0018:ffffc90003a0f650 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802a808d20 RCX: 0000000000000202 RDX: ffff8880295e8000 RSI: ffffffff8766c55e RDI: ffff8880295e8000 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8766b8a0 R13: 1ffff92000741ed4 R14: ffff88802a808720 R15: 0000000000000053 FS: 00007f554300f6c0(0000) GS:ffff8880d5b59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f554300eff8 CR3: 0000000022b9e000 CR4: 0000000000352ef0 Call Trace: drv_xmit_async net/mac802154/driver-ops.h:16 [inline] ieee802154_tx.isra.0+0x29f/0x570 net/mac802154/tx.c:89 ieee802154_subif_start_xmit+0xc8/0xf0 net/mac802154/tx.c:239 __netdev_start_xmit include/linux/netdevice.h:5429 [inline] netdev_start_xmit include/linux/netdevice.h:5438 [inline] xmit_one net/core/dev.c:3937 [inline] dev_hard_start_xmit+0x121/0x760 net/core/dev.c:3953 sch_direct_xmit+0x1b2/0xc70 net/sched/sch_generic.c:372 qdisc_restart net/sched/sch_generic.c:437 [inline] __qdisc_run+0x52d/0x1b20 net/sched/sch_generic.c:445 qdisc_run include/net/pkt_sched.h:121 [inline] qdisc_run include/net/pkt_sched.h:118 [inline] __dev_xmit_skb net/core/dev.c:4272 [inline] __dev_queue_xmit+0x18b9/0x4970 net/core/dev.c:4884 dev_queue_xmit include/linux/netdevice.h:3461 [inline] dgram_sendmsg+0xa0d/0xf50 net/ieee802154/socket.c:689 sock_sendmsg_nosec net/socket.c:800 [inline] __sock_sendmsg net/socket.c:815 [inline] __sys_sendto+0x48b/0x4e0 net/socket.c:2281 __do_sys_sendto net/socket.c:2288 [inline] __se_sys_sendto net/socket.c:2284 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2284 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f554306749e Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08 RSP: 002b:00007f554300f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f554300f6c0 RCX: 00007f554306749e RDX: 0000000000000040 RSI: 00007f554300f1d0 RDI: 0000000000000004 RBP: 0000000000000021 R08: 00007f55430e5b10 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffd0 R13: 000000000000000b R14: 00007ffdf0e50d30 R15: 00007ffdf0e50e18 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.