random: crng reseeded on system resumption general protection fault, probably for non-canonical address 0xdffffc0004000008: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000040-0x0000000020000047] CPU: 0 PID: 4701 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 Restarting kernel threads ... RSP: 0018:ffff888042aafc70 EFLAGS: 00010212 RAX: 0000000020000040 RBX: ffff888042aafd58 RCX: ffffc90002003000 RDX: 0000000004000008 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000f1 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000f1 R11: 0000000000000001 R12: ffff88800d725b80 done. R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84921ba0 FS: 00007fddb5849700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c321000 CR3: 0000000016f22000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fddb82d3b19 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:00007fddb5849188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007fddb83e6f60 RCX: 00007fddb82d3b19 RDX: 0000000000000001 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fddb832df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2bb556ef R14: 00007fddb5849300 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:ffff888042aafc70 EFLAGS: 00010212 RAX: 0000000020000040 RBX: ffff888042aafd58 RCX: ffffc90002003000 RDX: 0000000004000008 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000f1 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000f1 R11: 0000000000000001 R12: ffff88800d725b80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84921ba0 FS: 00007fddb5849700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c321000 CR3: 0000000016f22000 CR4: 0000000000350ef0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 9p: Unknown Cache mode fscFch IPv6: NLM_F_REPLACE set, but no existing node found! 9p: Unknown Cache mode fscFch 9p: Unknown Cache mode fscFch 9p: Unknown Cache mode fscFch syz-executor.0 uses obsolete (PF_INET,SOCK_PACKET) Unsupported ieee802154 address type: 0 lo: entered promiscuous mode lo: entered allmulticast mode Unsupported ieee802154 address type: 0 lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode lo: left promiscuous mode lo: left allmulticast mode lo: entered promiscuous mode lo: entered allmulticast mode audit: type=1400 audit(1679921223.001:14): avc: denied { setattr } for pid=4923 comm="syz-executor.4" name="oom_score_adj" dev="proc" ino=17585 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=file permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. ICMPv6: NA: aa:aa:aa:aa:aa:aa advertised our address fe80::aa on syz_tun! ICMPv6: NA: aa:aa:aa:aa:aa:aa advertised our address fe80::aa on syz_tun! netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. general protection fault, probably for non-canonical address 0xdffffc0004000038: 0000 [#2] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000200001c0-0x00000000200001c7] CPU: 0 PID: 5070 Comm: syz-executor.6 Tainted: G D 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:ffff888043b6fc78 EFLAGS: 00010212 RAX: 00000000200001c0 RBX: ffff888043b6fd60 RCX: ffffc90004a18000 RDX: 0000000004000038 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000c3 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000c3 R11: 0000000000000001 R12: ffff8880416d4a00 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20 FS: 00007f645659f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f49daa2d000 CR3: 0000000042390000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 __x64_sys_preadv+0x233/0x310 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f6459029b19 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:00007f645659f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f645913cf60 RCX: 00007f6459029b19 RDX: 0000000000000001 RSI: 0000000020000680 RDI: 0000000000000003 RBP: 00007f6459083f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee328e05f R14: 00007f645659f300 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:ffff888042aafc70 EFLAGS: 00010212 RAX: 0000000020000040 RBX: ffff888042aafd58 RCX: ffffc90002003000 RDX: 0000000004000008 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 00000000000000f1 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000f1 R11: 0000000000000001 R12: ffff88800d725b80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84921ba0 FS: 00007f645659f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f49daa2d000 CR3: 0000000042390000 CR4: 0000000000350ef0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 8 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read Buffer I/O error on dev sr0, logical block 1, async page read Buffer I/O error on dev sr0, logical block 2, async page read Buffer I/O error on dev sr0, logical block 3, async page read Buffer I/O error on dev sr0, logical block 4, async page read Buffer I/O error on dev sr0, logical block 5, async page read Buffer I/O error on dev sr0, logical block 6, async page read Buffer I/O error on dev sr0, logical block 7, async page read audit: type=1400 audit(1679921226.746:15): avc: denied { relabelto } for pid=5087 comm="syz-executor.1" name="file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 audit: type=1400 audit(1679921226.755:16): avc: denied { setattr } for pid=5087 comm="syz-executor.1" name="file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 audit: type=1400 audit(1679921226.755:17): avc: denied { getattr } for pid=5087 comm="syz-executor.1" path="/syzkaller-testdir260035347/syzkaller.HAMcuY/56/file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 audit: type=1400 audit(1679921226.755:18): avc: denied { read write } for pid=5087 comm="syz-executor.1" name="file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 process 'syz-executor.7' launched './file1' with NULL argv: empty string added audit: type=1400 audit(1679921226.755:19): avc: denied { open } for pid=5087 comm="syz-executor.1" path="/syzkaller-testdir260035347/syzkaller.HAMcuY/56/file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 Process accounting resumed audit: type=1400 audit(1679921227.118:20): avc: denied { relabelfrom } for pid=5087 comm="syz-executor.1" name="file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 Process accounting resumed audit: type=1400 audit(1679921227.195:21): avc: denied { unlink } for pid=269 comm="syz-executor.1" name="file1" dev="sda" ino=16007 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 6 prio class 2 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer ---------------- 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)