syzbot has found a reproducer for the following issue on: HEAD commit: f6e0150b2003 Merge tag 'mtd/for-6.15' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10256198580000 kernel config: https://syzkaller.appspot.com/x/.config?x=46a07195688b794b dashboard link: https://syzkaller.appspot.com/bug?extid=3344d668bbbc12996d46 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b2d804580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14256198580000
Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-f6e0150b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7ade4c34c9b1/vmlinux-f6e0150b.xz kernel image: https://storage.googleapis.com/syzbot-assets/1fe37b97ec9d/bzImage-f6e0150b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3344d668bbbc12996...@syzkaller.appspotmail.com R10: 0000000000000002 R11: 0000000000000246 R12: 00007fca2f73a048 R13: 00007fca2f73fffc R14: 00007fca2f73a167 R15: 0000000000000001 </TASK> ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5302 at net/core/dev.c:12104 __dev_change_net_namespace+0x16f9/0x1890 net/core/dev.c:12104 Modules linked in: CPU: 0 UID: 0 PID: 5302 Comm: syz-executor142 Not tainted 6.14.0-syzkaller-03565-gf6e0150b2003 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__dev_change_net_namespace+0x16f9/0x1890 net/core/dev.c:12104 Code: 01 90 48 c7 c7 80 88 2e 8d 48 c7 c6 60 88 2e 8d ba dd 2e 00 00 e8 47 60 a6 f7 90 0f 0b 90 90 e9 9d ea ff ff e8 b8 3b e7 f7 90 <0f> 0b 90 e9 06 fb ff ff e8 aa 3b e7 f7 90 0f 0b 90 e9 8b fe ff ff RSP: 0018:ffffc9000d336fa0 EFLAGS: 00010293 RAX: ffffffff89dc3ad8 RBX: dffffc0000000000 RCX: ffff88800032c880 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: ffffc9000d3373b8 R08: ffffffff89dc35d9 R09: 1ffffffff2079d4e R10: dffffc0000000000 R11: fffffbfff2079d4f R12: dffffc0000000000 R13: 1ffff92001a66e68 R14: ffff888043c7871c R15: 00000000fffffff4 FS: 0000555581f64380(0000) GS:ffff88808c824000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdafa37008 CR3: 0000000043cc2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> dev_change_net_namespace include/linux/netdevice.h:4163 [inline] cfg802154_switch_netns+0xc5/0x3d0 net/ieee802154/core.c:230 nl802154_wpan_phy_netns+0x13d/0x210 net/ieee802154/nl802154.c:1292 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb38/0xf00 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2533 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x8e8/0xce0 net/netlink/af_netlink.c:1882 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:733 ____sys_sendmsg+0x53c/0x870 net/socket.c:2573 ___sys_sendmsg net/socket.c:2627 [inline] __sys_sendmsg+0x271/0x360 net/socket.c:2659 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fca2f6f7e99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffc5fcdf18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fffc5fcdf30 RCX: 00007fca2f6f7e99 RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000006 RBP: 0000000000000002 R08: 00007fffc5fcdcb6 R09: 0000555581f65610 R10: 0000000000000002 R11: 0000000000000246 R12: 00007fca2f73a048 R13: 00007fca2f73fffc R14: 00007fca2f73a167 R15: 0000000000000001 </TASK> --- 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.
