Hello, syzbot found the following issue on: HEAD commit: 75c2946db360 Merge tag 'wireless-next-2024-03-08' of git:/.. git tree: net-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=16700bf2180000 kernel config: https://syzkaller.appspot.com/x/.config?x=bc4c0052bd7e51d8 dashboard link: https://syzkaller.appspot.com/bug?extid=150fa730f40bce72aa05 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=163dfe92180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17818449180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b9317816c71d/disk-75c2946d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0d18e4d62eff/vmlinux-75c2946d.xz kernel image: https://storage.googleapis.com/syzbot-assets/9089b556e6fd/bzImage-75c2946d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+150fa730f40bce72aa05@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5074 at include/linux/gfp.h:323 page_frag_alloc_align include/linux/gfp.h:323 [inline] WARNING: CPU: 1 PID: 5074 at include/linux/gfp.h:323 rxrpc_alloc_data_txbuf+0x7cf/0xda0 net/rxrpc/txbuf.c:36 Modules linked in: CPU: 1 PID: 5074 Comm: syz-executor206 Not tainted 6.8.0-rc7-syzkaller-02348-g75c2946db360 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:page_frag_alloc_align include/linux/gfp.h:323 [inline] RIP: 0010:rxrpc_alloc_data_txbuf+0x7cf/0xda0 net/rxrpc/txbuf.c:36 Code: 96 01 f7 4c 89 f7 e8 a0 f1 58 f7 45 31 f6 4c 89 f0 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 42 96 01 f7 90 <0f> 0b 90 e9 8d f9 ff ff 44 89 fe 83 e6 01 31 ff e8 6c 9a 01 f7 44 RSP: 0018:ffffc9000398f328 EFLAGS: 00010293 RAX: ffffffff8a91d8de RBX: 0000000000000000 RCX: ffff8880284f5940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8a91d266 R09: 1ffffffff1f0c0fd R10: dffffc0000000000 R11: fffffbfff1f0c0fe R12: ffff88802e3a4390 R13: ffff88801b6b5280 R14: ffff88801caf4900 R15: 0000000000000cc0 FS: 0000555556094380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005c08 CR3: 00000000755e2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> rxrpc_send_data+0xb17/0x2800 net/rxrpc/sendmsg.c:351 rxrpc_do_sendmsg+0x1569/0x1910 net/rxrpc/sendmsg.c:718 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2724 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fb02c0cf369 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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:00007ffdc045a3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007ffdc045a5c8 RCX: 00007fb02c0cf369 RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 RBP: 00007fb02c142610 R08: 00007ffdc045a5c8 R09: 00007ffdc045a5c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdc045a5b8 R14: 0000000000000001 R15: 0000000000000001 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. 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
