general protection fault, probably for non-canonical address 0xdffffc0004000028: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020000140-0x0000000020000147]
CPU: 1 PID: 55479 Comm: syz-executor.7 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:ffff888042457c78 EFLAGS: 00010216
RAX: 0000000020000140 RBX: ffff888042457d60 RCX: ffffc90003e0a000
RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000002d R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000002d R11: 0000000000000001 R12: ffff88800d8df680
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f434f5d4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c421000 CR3: 0000000046586000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
vfs_readv+0xe5/0x160
__x64_sys_preadv+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f435205eb19
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:00007f434f5d4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f4352171f60 RCX: 00007f435205eb19
RDX: 0000000000000001 RSI: 0000000020000600 RDI: 0000000000000003
RBP: 00007f43520b8f6d R08: 0000000000000080 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe797c827f R14: 00007f434f5d4300 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:ffff888042457c78 EFLAGS: 00010216
RAX: 0000000020000140 RBX: ffff888042457d60 RCX: ffffc90003e0a000
RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000002d R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000002d R11: 0000000000000001 R12: ffff88800d8df680
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f434f5d4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c421000 CR3: 0000000046586000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 55486 Comm: syz-executor.5 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
Call Trace:
dump_stack_lvl+0xc1/0xf0
should_fail_ex+0x4b4/0x5b0
should_failslab+0x9/0x20
__kmem_cache_alloc_node+0x5b/0x310
__kmalloc_node_track_caller+0x4b/0x160
kstrdup+0x3f/0x80
kstrdup_const+0x57/0x80
alloc_vfsmnt+0xb5/0x6c0
clone_mnt+0x6c/0xd80
copy_tree+0x3b4/0xa60
copy_mnt_ns+0x1a9/0xae0
create_new_namespaces+0xd6/0xb30
copy_namespaces+0x414/0x500
copy_process+0x2aec/0x7430
kernel_clone+0xeb/0x7d0
__do_sys_clone3+0x1d5/0x2e0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7ff4acda1b19
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:00007ff4aa317188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007ff4aceb4f60 RCX: 00007ff4acda1b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200001c0
RBP: 00007ff4aa3171d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe8fd5423f R14: 00007ff4aa317300 R15: 0000000000022000
general protection fault, probably for non-canonical address 0xdffffc0004000068: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020000340-0x0000000020000347]
CPU: 1 PID: 55492 Comm: syz-executor.1 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:ffff888049f17c70 EFLAGS: 00010212
RAX: 0000000020000340 RBX: ffff888049f17d60 RCX: ffffc90003c09000
RDX: 0000000004000068 RSI: ffffffff8185830e RDI: 0000000000000007
RBP: 00000000000000f8 R08: 0000000000000007 R09: 0000000000000000
R10: 00000000000000f8 R11: 0000000000000001 R12: ffff88800f0c5400
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84923520
FS: 00007fd3b9681700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd3b9680ff8 CR3: 0000000049fba000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
vfs_writev+0x1ae/0x660
__x64_sys_pwritev+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fd3bc10bb19
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:00007fd3b9681188 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
RAX: ffffffffffffffda RBX: 00007fd3bc21ef60 RCX: 00007fd3bc10bb19
RDX: 0000000000000001 RSI: 0000000020001640 RDI: 0000000000000003
RBP: 00007fd3bc165f6d R08: 00000000000056a4 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd314e1c9f R14: 00007fd3b9681300 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:ffff888042457c78 EFLAGS: 00010216
RAX: 0000000020000140 RBX: ffff888042457d60 RCX: ffffc90003e0a000
RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000002d R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000002d R11: 0000000000000001 R12: ffff88800d8df680
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007fd3b9681700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd3b9680ff8 CR3: 0000000049fba000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
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)