general protection fault, probably for non-canonical address 0xdffffc0004000300: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020001800-0x0000000020001807] CPU: 1 PID: 5287 Comm: syz-executor.2 Not tainted 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888016fafc30 EFLAGS: 00010216 RAX: 0000000020001800 RBX: ffff888016fafd18 RCX: ffffc90003411000 RDX: 0000000004000300 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000083 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000083 R11: 0000000000000001 R12: ffff88800f21aa00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a7a880 FS: 00007ff37fba5700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200018c0 CR3: 000000000b892000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_preadv+0x1ba/0x270 __x64_sys_preadv2+0xef/0x160 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff38262fb19 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:00007ff37fba5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000147 RAX: ffffffffffffffda RBX: 00007ff382742f60 RCX: 00007ff38262fb19 RDX: 0000000000000001 RSI: 00000000200018c0 RDI: 0000000000000003 RBP: 00007ff382689f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7602cf3f R14: 00007ff37fba5300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888016fafc30 EFLAGS: 00010216 RAX: 0000000020001800 RBX: ffff888016fafd18 RCX: ffffc90003411000 RDX: 0000000004000300 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000083 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000083 R11: 0000000000000001 R12: ffff88800f21aa00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a7a880 FS: 00007ff37fba5700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200018c0 CR3: 000000000b892000 CR4: 0000000000350ee0 lo: entered promiscuous mode lo: left promiscuous mode block device autoloading is deprecated and will be removed. loop0: detected capacity change from 0 to 16127 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= loop0: detected capacity change from 0 to 16127 random: crng reseeded on system resumption random: crng reseeded on system resumption audit: type=1400 audit(1679918798.557:17): avc: denied { module_load } for pid=5394 comm="syz-executor.6" path=2F6D656D66643A42DB2F89036CDE62CBB534EDBE4C4BA4673F4B29A0F09B3859B55AE11253F547CCF3E902680BCA2896E143DF1CEA8543FB1013FA0316CD05202864656C6574656429 dev="tmpfs" ino=44 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=system permissive=1 Invalid ELF header magic: != ELF Invalid ELF header magic: != ELF random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO random: crng reseeded on system resumption Bluetooth: hci0: link tx timeout Bluetooth: hci0: killing stalled connection 10:aa:aa:aa:aa:aa netlink: 'syz-executor.5': attribute type 1 has an invalid length. netlink: 'syz-executor.5': attribute type 1 has an invalid length. platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 Bluetooth: hci0: link tx timeout Bluetooth: hci0: killing stalled connection 10:aa:aa:aa:aa:aa random: crng reseeded on system resumption audit: type=1400 audit(1679918803.102:18): avc: denied { block_suspend } for pid=5561 comm="syz-executor.7" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 Bluetooth: hci0: link tx timeout Bluetooth: hci0: killing stalled connection 10:aa:aa:aa:aa:aa Bluetooth: hci0: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 52 02 test %edx,0x2(%rdx) 5: 00 00 add %al,(%rax) 7: 4d 8b 7c 24 28 mov 0x28(%r12),%r15 c: e8 48 2c c6 ff callq 0xffc62c59 11: 48 8b 44 24 18 mov 0x18(%rsp),%rax 16: 80 38 00 cmpb $0x0,(%rax) 19: 0f 85 1c 02 00 00 jne 0x23b 1f: 48 8b 43 18 mov 0x18(%rbx),%rax 23: 48 89 c2 mov %rax,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1) <-- trapping instruction 2f: 0f 85 ef 01 00 00 jne 0x224 35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 3a: 48 8b 30 mov (%rax),%rsi 3d: 80 39 00 cmpb $0x0,(%rcx)