__netns_tracker_alloc include/net/net_namespace.h:362 [inline] netns_tracker_alloc include/net/net_namespace.h:371 [inline] get_net_track+0x16e/0x230 include/net/net_namespace.h:388 sk_alloc+0x1d6/0x390 net/core/sock.c:2318 nfc_llcp_sock_alloc+0x3c/0x4d0 net/nfc/llcp_sock.c:979 llcp_sock_create+0xeb/0x1a0 net/nfc/llcp_sock.c:1044 nfc_sock_create+0x10d/0x180 net/nfc/af_nfc.c:31 __sock_create+0x4b2/0x9d0 net/socket.c:1605 sock_create net/socket.c:1663 [inline] __sys_socket_create net/socket.c:1700 [inline] __sys_socket+0xd6/0x1b0 net/socket.c:1747 __do_sys_socket net/socket.c:1761 [inline] __se_sys_socket net/socket.c:1759 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1759 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 12276 Comm: syz.6.1145 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858 Code: 85 c6 ff 4c 89 e7 48 c7 c6 20 98 b7 8b e8 4c 1e 2a ff 90 0f 0b e8 c4 85 c6 ff 4c 89 e7 48 c7 c6 c0 8c b7 8b e8 35 1e 2a ff 90 <0f> 0b e8 ad 85 c6 ff 4c 89 e7 48 c7 c6 20 98 b7 8b e8 1e 1e 2a ff RSP: 0018:ffffc9000402f280 EFLAGS: 00010246 RAX: 5c29255b1cf05400 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8dcc95ec RDI: 00000000ffffffff RBP: ffffc9000402f400 R08: ffffffff8fef1b77 R09: 1ffffffff1fde36e R10: dffffc0000000000 R11: fffffbfff1fde36f R12: ffffea0002132e00 R13: dffffc0000000000 R14: ffffea0002132e08 R15: 0000000000000004 FS: 00007f13b8a9d6c0(0000) GS:ffff8881257f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f611b0e6ff8 CR3: 000000003ed16000 CR4: 0000000000350ef0 Call Trace: filemap_add_folio+0x264/0x530 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x6a8/0xe50 mm/readahead.c:512 do_async_mmap_readahead mm/filemap.c:3436 [inline] filemap_fault+0x5bf/0x12e0 mm/filemap.c:3535 __do_fault+0x138/0x390 mm/memory.c:5323 do_shared_fault mm/memory.c:5822 [inline] do_fault mm/memory.c:5896 [inline] do_pte_missing+0x5a4/0x37a0 mm/memory.c:4404 handle_pte_fault mm/memory.c:6276 [inline] __handle_mm_fault mm/memory.c:6414 [inline] handle_mm_fault+0x1b8c/0x32a0 mm/memory.c:6583 do_user_addr_fault+0x75b/0x1360 arch/x86/mm/fault.c:1385 handle_page_fault arch/x86/mm/fault.c:1474 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] RIP: 0010:raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] RIP: 0010:_inline_copy_to_user include/linux/uaccess.h:206 [inline] RIP: 0010:_copy_to_user+0x85/0xb0 lib/usercopy.c:26 Code: e8 40 b5 23 fd 4d 39 fc 72 3d 4d 39 ec 77 38 e8 d1 b2 23 fd 4c 89 f7 89 de e8 07 05 8c fd 0f 01 cb 4c 89 ff 48 89 d9 4c 89 f6 a4 0f 1f 00 48 89 cb 0f 01 ca 48 89 d8 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc9000402fb90 EFLAGS: 00050256 RAX: ffffffff84a0c401 RBX: 0000000000000008 RCX: 0000000000000008 RDX: 0000000000000000 RSI: ffffc9000402fc20 RDI: 000020000005b000 RBP: ffffc9000402fc90 R08: ffffc9000402fc27 R09: 1ffff92000805f84 R10: dffffc0000000000 R11: fffff52000805f85 R12: 000020000005b008 R13: 00007ffffffff000 R14: ffffc9000402fc20 R15: 000020000005b000 copy_to_user include/linux/uaccess.h:236 [inline] msr_read+0x17a/0x250 arch/x86/kernel/msr.c:69 vfs_read+0x20c/0xa70 fs/read_write.c:570 ksys_read+0x150/0x270 fs/read_write.c:715 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f13b7b9aeb9 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f13b8a9d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f13b7e15fa0 RCX: 00007f13b7b9aeb9 RDX: 0000000000018ff8 RSI: 0000200000048040 RDI: 0000000000000004 RBP: 00007f13b7c08c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f13b7e16038 R14: 00007f13b7e15fa0 R15: 00007ffe5a421538 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858 Code: 85 c6 ff 4c 89 e7 48 c7 c6 20 98 b7 8b e8 4c 1e 2a ff 90 0f 0b e8 c4 85 c6 ff 4c 89 e7 48 c7 c6 c0 8c b7 8b e8 35 1e 2a ff 90 <0f> 0b e8 ad 85 c6 ff 4c 89 e7 48 c7 c6 20 98 b7 8b e8 1e 1e 2a ff RSP: 0018:ffffc9000402f280 EFLAGS: 00010246 RAX: 5c29255b1cf05400 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8dcc95ec RDI: 00000000ffffffff RBP: ffffc9000402f400 R08: ffffffff8fef1b77 R09: 1ffffffff1fde36e R10: dffffc0000000000 R11: fffffbfff1fde36f R12: ffffea0002132e00 R13: dffffc0000000000 R14: ffffea0002132e08 R15: 0000000000000004 FS: 00007f13b8a9d6c0(0000) GS:ffff8881257f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f611b0e6ff8 CR3: 000000003ed16000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: e8 40 b5 23 fd call 0xfd23b545 5: 4d 39 fc cmp %r15,%r12 8: 72 3d jb 0x47 a: 4d 39 ec cmp %r13,%r12 d: 77 38 ja 0x47 f: e8 d1 b2 23 fd call 0xfd23b2e5 14: 4c 89 f7 mov %r14,%rdi 17: 89 de mov %ebx,%esi 19: e8 07 05 8c fd call 0xfd8c0525 1e: 0f 01 cb stac 21: 4c 89 ff mov %r15,%rdi 24: 48 89 d9 mov %rbx,%rcx 27: 4c 89 f6 mov %r14,%rsi * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: 0f 1f 00 nopl (%rax) 2f: 48 89 cb mov %rcx,%rbx 32: 0f 01 ca clac 35: 48 89 d8 mov %rbx,%rax 38: 5b pop %rbx 39: 41 5c pop %r12 3b: 41 5d pop %r13 3d: 41 5e pop %r14 3f: 41 rex.B