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charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 06afb0f36106 Merge tag 'trace-v6.13' of git://git.kernel.o.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=111a7b78580000 kernel config: https://syzkaller.appspot.com/x/.config?x=95b76860fd16c857 dashboard link: https://syzkaller.appspot.com/bug?extid=57bac0866ddd99fe47c0 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=131a7b78580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=158e81c0580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/49111529582a/disk-06afb0f3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f04577ad9add/vmlinux-06afb0f3.xz kernel image: https://storage.googleapis.com/syzbot-assets/b352b4fae995/bzImage-06afb0f3.xz The issue was bisected to: commit 7f3287db654395f9c5ddd246325ff7889f550286 Author: Florian Westphal Date: Sat Sep 7 14:07:49 2024 +0000 netfilter: nft_socket: make cgroupsv2 matching work with namespaces bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=105d8778580000 final oops: https://syzkaller.appspot.com/x/report.txt?x=125d8778580000 console output: https://syzkaller.appspot.com/x/log.txt?x=145d8778580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+57bac0866ddd99fe47c0@syzkaller.appspotmail.com Fixes: 7f3287db6543 ("netfilter: nft_socket: make cgroupsv2 matching work with namespaces") ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5849 at net/netfilter/nft_socket.c:220 nft_socket_init+0x2db/0x3a0 net/netfilter/nft_socket.c:220 Modules linked in: CPU: 1 UID: 0 PID: 5849 Comm: syz-executor186 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:nft_socket_init+0x2db/0x3a0 net/netfilter/nft_socket.c:220 Code: 42 0f b6 04 30 84 c0 0f 85 c8 00 00 00 88 5d 00 bb 08 00 00 00 e9 aa fe ff ff e8 30 4a 9e f7 e9 5d ff ff ff e8 26 4a 9e f7 90 <0f> 0b 90 e9 4a ff ff ff 89 e9 80 e1 07 38 c1 0f 8c 9a fd ff ff 48 RSP: 0018:ffffc90003eb71d8 EFLAGS: 00010293 RAX: ffffffff89f7030a RBX: 0000000000000100 RCX: ffff888034de0000 RDX: 0000000000000000 RSI: 0000000000000100 RDI: 00000000000000ff RBP: 00000000000000ff R08: ffffffff89f702c5 R09: 1ffffffff203a5b6 R10: dffffc0000000000 R11: fffffbfff203a5b7 R12: 1ffff110061c5004 R13: ffff8880347742a2 R14: dffffc0000000000 R15: ffff888030e28020 FS: 00005555769d4380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 0000000029582000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nf_tables_newexpr net/netfilter/nf_tables_api.c:3444 [inline] nf_tables_newrule+0x185e/0x2980 net/netfilter/nf_tables_api.c:4272 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:524 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline] nfnetlink_rcv+0x14e3/0x2ab0 net/netfilter/nfnetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcc94659e69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 00 00 90 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:00007ffe0bc7a0d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcc94659e69 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc946a3036 R13: 00007ffe0bc7a110 R14: 00007ffe0bc7a150 R15: 0000000000000000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup