general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f] CPU: 1 PID: 6460 Comm: syz-executor.0 Not tainted 5.10.52 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:io_sq_offload_start fs/io_uring.c:7995 [inline] RIP: 0010:io_disable_sqo_submit+0x1b1/0x230 fs/io_uring.c:8715 Code: e8 f4 01 bc ff 85 ed 0f 84 fc fe ff ff e8 77 08 bc ff 49 8d bd 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 64 49 8b ad 48 01 00 00 48 85 ed 0f 84 c9 fe ff ff RSP: 0018:ffff88804b39fd70 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff888017f82000 RCX: ffffc900015ec000 RDX: 0000000000000029 RSI: ffffffff81837cb9 RDI: 0000000000000148 RBP: 0000000000000002 R08: 0000000000000000 R09: ffff888017f823c7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888017f823c0 R13: 0000000000000000 R14: ffff888017f82048 R15: ffff888017f82000 FS: 00007fa73a66b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e4da3 CR3: 0000000042ae2000 CR4: 0000000000350ee0 Call Trace: io_uring_create fs/io_uring.c:9508 [inline] io_uring_setup+0x14e0/0x2ee0 fs/io_uring.c:9536 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa73a66b108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000020ffc000 RSI: 0000000020000000 RDI: 0000000000005172 RBP: 0000000020000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000020ffc000 R14: 0000000000000000 R15: 0000000020fff000 Modules linked in: ---[ end trace 1fa000907ab8e702 ]--- RIP: 0010:io_sq_offload_start fs/io_uring.c:7995 [inline] RIP: 0010:io_disable_sqo_submit+0x1b1/0x230 fs/io_uring.c:8715 Code: e8 f4 01 bc ff 85 ed 0f 84 fc fe ff ff e8 77 08 bc ff 49 8d bd 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 64 49 8b ad 48 01 00 00 48 85 ed 0f 84 c9 fe ff ff RSP: 0018:ffff88804b39fd70 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff888017f82000 RCX: ffffc900015ec000 RDX: 0000000000000029 RSI: ffffffff81837cb9 RDI: 0000000000000148 RBP: 0000000000000002 R08: 0000000000000000 R09: ffff888017f823c7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888017f823c0 R13: 0000000000000000 R14: ffff888017f82048 R15: ffff888017f82000 FS: 00007fa73a66b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e4da3 CR3: 0000000042ae2000 CR4: 0000000000350ee0 netlink: 'syz-executor.3': attribute type 2 has an invalid length. EXT4-fs error (device sda): ext4_remount:5881: Abort forced by user Aborting journal on device sda-8. EXT4-fs error (device sda): ext4_journal_check_start:83: Detected aborted journal EXT4-fs error (device sda): ext4_journal_check_start:83: Detected aborted journal EXT4-fs error (device sda): ext4_journal_check_start:83: Detected aborted journal EXT4-fs (sda): Remounting filesystem read-only EXT4-fs (sda): Remounting filesystem read-only EXT4-fs (sda): Remounting filesystem read-only EXT4-fs (sda): Remounting filesystem read-only netlink: 'syz-executor.3': attribute type 2 has an invalid length. EXT4-fs error (device sda): ext4_remount:5881: Abort forced by user syz-executor.7 (394) used greatest stack depth: 24128 bytes left syz-executor.1 (391) used greatest stack depth: 23728 bytes left