audit: type=1400 audit(1763318385.679:13): avc: denied { watch_reads } for pid=4204 comm="syz-executor.2" path="/syzkaller-testdir580683045/syzkaller.RUVvQh/8/file0" dev="sda" ino=16013 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=file permissive=1
Oops: general protection fault, probably for non-canonical address 0xdffffc000000002e: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000170-0x0000000000000177]
CPU: 1 UID: 0 PID: 4216 Comm: syz-executor.0 Not tainted 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_free+0x28a/0x5a0
Code: 02 00 00 4c 8b 65 28 4d 85 e4 74 43 e8 7f 56 30 00 49 8d bc 24 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 9c 24 78 01 00 00 bf 08 00 00
RSP: 0018:ffff888019cef9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90002a9f000
RDX: 000000000000002e RSI: ffffffff8144dd61 RDI: 0000000000000174
RBP: ffff88800974f750 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: fffffffffffffffc
R13: ffff88801f57841c R14: ffff88801fd21040 R15: ffff88801bd5dbb8
FS: 00007f08e877e700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51d7386309 CR3: 000000001ffbc000 CR4: 0000000000350ef0
Call Trace:
create_new_namespaces+0x585/0x750
copy_namespaces+0x45c/0x580
copy_process+0x26e4/0x72a0
kernel_clone+0xea/0x7f0
__do_sys_clone3+0x1f5/0x280
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f08eb24ab19
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:00007f08e877e188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f08eb35e0e0 RCX: 00007f08eb24ab19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f08eb2a4f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0fe4781f R14: 00007f08e877e300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nsproxy_free+0x28a/0x5a0
Code: 02 00 00 4c 8b 65 28 4d 85 e4 74 43 e8 7f 56 30 00 49 8d bc 24 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 9c 24 78 01 00 00 bf 08 00 00
RSP: 0018:ffff888019cef9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90002a9f000
RDX: 000000000000002e RSI: ffffffff8144dd61 RDI: 0000000000000174
RBP: ffff88800974f750 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: fffffffffffffffc
R13: ffff88801f57841c R14: ffff88801fd21040 R15: ffff88801bd5dbb8
FS: 00007f08e877e700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51d7386309 CR3: 000000001ffbc000 CR4: 0000000000350ef0
Bluetooth: hci7: command 0x0c1a tx timeout
Bluetooth: hci6: command 0x0c1a tx timeout
Bluetooth: hci5: command 0x0c1a tx timeout
Bluetooth: hci4: command 0x0c1a tx timeout
Bluetooth: hci3: command 0x0c1a tx timeout
Bluetooth: hci2: command 0x0c1a tx timeout
Bluetooth: hci1: command 0x0c1a tx timeout
Bluetooth: hci0: command 0x0c1a tx timeout
capability: warning: `syz-executor.0' uses deprecated v2 capabilities in a way that may be insecure
loop7: detected capacity change from 0 to 2097151
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 07 ff c0 00 00 02 00
I/O error, dev sr0, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
I/O error, dev loop7, sector 2096896 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
I/O error, dev loop7, sector 2096896 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop7, logical block 2096896, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2096897 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
I/O error, dev loop7, sector 2096897 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop7, logical block 2096897, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2096898 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
I/O error, dev loop7, sector 2096898 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop7, logical block 2096898, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2096899 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
I/O error, dev loop7, sector 2096899 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop7, logical block 2096899, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev loop7, logical block 2096900, async page read
Buffer I/O error on dev loop7, logical block 2096901, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev loop7, logical block 2096902, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev loop7, logical block 2096903, async page read
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 0 UID: 0 PID: 4271 Comm: syz-executor.5 Tainted: G D 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888019d67db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000caef000
RDX: 0000000000000017 RSI: ffffffff817193a8 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ed57 R11: ffff88801eba4f60 R12: ffff888016708888
R13: ffff888016708a3c R14: ffffffff85cfdf20 R15: ffff88804970dbb8
FS: 00007f1e57ff3700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf25000 CR3: 0000000016a1a000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e5aa7db19
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:00007f1e57ff3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1e5ab90f60 RCX: 00007f1e5aa7db19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007f1e5aad7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe27c2662f R14: 00007f1e57ff3300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nsproxy_free+0x28a/0x5a0
Code: 02 00 00 4c 8b 65 28 4d 85 e4 74 43 e8 7f 56 30 00 49 8d bc 24 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 9c 24 78 01 00 00 bf 08 00 00
RSP: 0018:ffff888019cef9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90002a9f000
RDX: 000000000000002e RSI: ffffffff8144dd61 RDI: 0000000000000174
RBP: ffff88800974f750 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: fffffffffffffffc
R13: ffff88801f57841c R14: ffff88801fd21040 R15: ffff88801bd5dbb8
FS: 00007f1e57ff3700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
loop0: detected capacity change from 0 to 512
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf25000 CR3: 0000000016a1a000 CR4: 0000000000350ef0
ext4: Unknown parameter '-Bv>I@3 6iP-:I0j8ULPR1E?lM~67i>X^G$YP-S Wbδ \Svd.&]iP:'
loop0: detected capacity change from 0 to 512
ext4: Unknown parameter '-Bv>I@3 6iP-:I0j8ULPR1E?lM~67i>X^G$YP-S Wbδ \Svd.&]iP:'
loop6: detected capacity change from 0 to 136
loop7: detected capacity change from 0 to 2097151
nfs: Unknown parameter ':-{'
nfs: Unknown parameter ':-{'
iso9660: Unknown parameter '35 5
6Fz3/ L24(&_p&`)olpڸmőѕw qEXA" itvl72VH'
loop6: detected capacity change from 0 to 136
iso9660: Unknown parameter '35 5
6Fz3/ L24(&_p&`)olpڸmőѕw qEXA" itvl72VH'
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
loop7: detected capacity change from 0 to 2097151
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev sr0, logical block 1, async page read
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
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
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
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
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
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#3] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 1 UID: 0 PID: 4313 Comm: syz-executor.5 Tainted: G D 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary)
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RSP: 0018:ffff88801bd07db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000d2f3000
RDX: 0000000000000017 RSI: ffffffff817193a8 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ed57 R11: 00000000000002b9 R12: ffff888019eb9c70
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
R13: ffff888019eb9e24 R14: ffffffff85cfdf20 R15: ffff888019ff5bb8
FS: 00007f1e57fd2700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
CR2: 00007f00a3af3550 CR3: 0000000016a1a000 CR4: 0000000000350ef0
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
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
__x64_sys_unshare+0x31/0x40
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
do_syscall_64+0xbf/0x430
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
entry_SYSCALL_64_after_hwframe+0x77/0x7f
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RIP: 0033:0x7f1e5aa7db19
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:00007f1e57fd2188 EFLAGS: 00000246
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1e5ab91020 RCX: 00007f1e5aa7db19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007f1e5aad7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe27c2662f R14: 00007f1e57fd2300 R15: 0000000000022000
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Modules linked in:
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
---[ end trace 0000000000000000 ]---
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RIP: 0010:nsproxy_free+0x28a/0x5a0
Code: 02 00 00 4c 8b 65 28 4d 85 e4 74 43 e8 7f 56 30 00 49 8d bc 24 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 9c 24 78 01 00 00 bf 08 00 00
RSP: 0018:ffff888019cef9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90002a9f000
RDX: 000000000000002e RSI: ffffffff8144dd61 RDI: 0000000000000174
RBP: ffff88800974f750 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: fffffffffffffffc
R13: ffff88801f57841c R14: ffff88801fd21040 R15: ffff88801bd5dbb8
FS: 00007f1e57fd2700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00a3af3550 CR3: 0000000016a1a000 CR4: 0000000000350ef0
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
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
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
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
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
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
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
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
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
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
----------------
Code disassembly (best guess):
0: 02 00 add (%rax),%al
2: 00 4c 8b 65 add %cl,0x65(%rbx,%rcx,4)
6: 28 4d 85 sub %cl,-0x7b(%rbp)
9: e4 74 in $0x74,%al
b: 43 e8 7f 56 30 00 rex.XB callq 0x305690
11: 49 8d bc 24 78 01 00 lea 0x178(%r12),%rdi
18: 00
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 f7 02 00 00 jne 0x32b
34: 49 8b 9c 24 78 01 00 mov 0x178(%r12),%rbx
3b: 00
3c: bf .byte 0xbf
3d: 08 00 or %al,(%rax)