general protection fault, probably for non-canonical address 0xdffffc00040012f0: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020009780-0x0000000020009787]
CPU: 1 PID: 5214 Comm: syz-executor.0 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_write+0x477/0x700
Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff88803d9efc70 EFLAGS: 00010216
RAX: 0000000020009780 RBX: ffff88803d9efd60 RCX: ffffc90000bf7000
RDX: 00000000040012f0 RSI: ffffffff8185830e RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801f014a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a66820
FS: 00007febde539700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020009780 CR3: 000000000f140000 CR4: 0000000000350ee0
Call Trace:
vfs_writev+0x1ae/0x660
__x64_sys_pwritev+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7febe0fc3b19
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:00007febde539188 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
RAX: ffffffffffffffda RBX: 00007febe10d6f60 RCX: 00007febe0fc3b19
RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007febe101df6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfb33cacf R14: 00007febde539300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_iter_write+0x477/0x700
Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff88803d9efc70 EFLAGS: 00010216
RAX: 0000000020009780 RBX: ffff88803d9efd60 RCX: ffffc90000bf7000
RDX: 00000000040012f0 RSI: ffffffff8185830e RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801f014a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a66820
FS: 00007febde539700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020009780 CR3: 000000000f140000 CR4: 0000000000350ee0
general protection fault, probably for non-canonical address 0xdffffc00040012f0: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020009780-0x0000000020009787]
CPU: 1 PID: 5220 Comm: syz-executor.0 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_write+0x477/0x700
Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff88803e8d7c70 EFLAGS: 00010216
RAX: 0000000020009780 RBX: ffff88803e8d7d60 RCX: ffffc90002202000
RDX: 00000000040012f0 RSI: ffffffff8185830e RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800dba9400
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a66820
FS: 00007febde4f7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febde517d58 CR3: 000000000f140000 CR4: 0000000000350ee0
Call Trace:
vfs_writev+0x1ae/0x660
__x64_sys_pwritev+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7febe0fc3b19
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:00007febde4f7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
RAX: ffffffffffffffda RBX: 00007febe10d70e0 RCX: 00007febe0fc3b19
RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007febe101df6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfb33cacf R14: 00007febde4f7300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_iter_write+0x477/0x700
Code: 00 0f 85 fd 01 00 00 4d 8b 7c 24 28 e8 d2 05 c6 ff 48 8b 44 24 18 80 38 00 0f 85 68 01 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 3b 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff88803d9efc70 EFLAGS: 00010216
RAX: 0000000020009780 RBX: ffff88803d9efd60 RCX: ffffc90000bf7000
RDX: 00000000040012f0 RSI: ffffffff8185830e RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801f014a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84a66820
FS: 00007febde4f7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febde517d58 CR3: 000000000f140000 CR4: 0000000000350ee0
loop3: detected capacity change from 0 to 262280
loop4: detected capacity change from 0 to 40
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
process 'syz-executor.6' launched './file1' with NULL argv: empty string added
loop4: detected capacity change from 0 to 40
audit: type=1326 audit(1679916160.983:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5306 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd996931b19 code=0x0
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
audit: type=1326 audit(1679916161.785:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5306 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd996931b19 code=0x0
loop4: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 40
audit: type=1326 audit(1679916161.975:25): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5350 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd996931b19 code=0x0
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop7, logical block 10, lost async page write
loop5: detected capacity change from 0 to 264192
loop7: detected capacity change from 0 to 40
I/O error, dev loop5, sector 264064 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
loop7: detected capacity change from 0 to 40
loop4: detected capacity change from 0 to 40
audit: type=1326 audit(1679916163.828:26): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5390 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd996931b19 code=0x0
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop7, logical block 10, lost async page write
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
----------------
Code disassembly (best guess):
0: 00 0f add %cl,(%rdi)
2: 85 fd test %edi,%ebp
4: 01 00 add %eax,(%rax)
6: 00 4d 8b add %cl,-0x75(%rbp)
9: 7c 24 jl 0x2f
b: 28 e8 sub %ch,%al
d: d2 05 c6 ff 48 8b rolb %cl,-0x74b7003a(%rip) # 0x8b48ffd9
13: 44 24 18 rex.R and $0x18,%al
16: 80 38 00 cmpb $0x0,(%rax)
19: 0f 85 68 01 00 00 jne 0x187
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 3b 01 00 00 jne 0x170
35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx
3a: 48 8b 30 mov (%rax),%rsi
3d: 80 39 00 cmpb $0x0,(%rcx)