Extracting prog: 2m24.120062708s
Minimizing prog: 48.4µs
Simplifying prog options: 0s
Extracting C: 32.981867326s
Simplifying C: 10m28.695029935s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000140), &(0x7f0000000000)='./bus\x00', 0x8, &(0x7f0000000080)=ANY=[], 0x1, 0x283, &(0x7f0000000300)="$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")
program crashed: general protection fault in hfs_find_init
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=1m6.723858114s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
simplifying C reproducer
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
testing compiled C program (duration=1m6.723858114s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
program crashed: general protection fault in hfs_find_init
reproducing took 13m25.797023259s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 1 UID: 0 PID: 5817 Comm: syz-executor170 Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:hfs_find_init+0x72/0x1f0 fs/hfs/bfind.c:21
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0
RSP: 0018:ffffc90003c6f400 EFLAGS: 00010202
RAX: 1ffff9200078de9f RBX: ffffc90003c6f4f8 RCX: ffff888035149e00
RDX: 0000000000000000 RSI: ffffc90003c6f4e0 RDI: ffffc90003c6f4f0
RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000
R10: ffffc90003c6f4e0 R11: fffff5200078dea3 R12: ffffc90003c6f4e0
R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008
FS: 00005555872c5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e407035d98 CR3: 0000000077626000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_get_block+0x4f4/0xb60 fs/hfs/extent.c:366
block_read_full_folio+0x3ee/0xae0 fs/buffer.c:2396
filemap_read_folio+0x148/0x3b0 mm/filemap.c:2366
do_read_cache_folio+0x373/0x5b0 mm/filemap.c:3826
do_read_cache_page mm/filemap.c:3892 [inline]
read_cache_page+0x5b/0x170 mm/filemap.c:3901
read_mapping_page include/linux/pagemap.h:1005 [inline]
hfs_btree_open+0x506/0xf40 fs/hfs/btree.c:78
hfs_mdb_get+0x1443/0x21b0 fs/hfs/mdb.c:199
hfs_fill_super+0x38c/0x6b0 fs/hfs/super.c:337
get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8f52167dea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd34a438b8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd34a438d0 RCX: 00007f8f52167dea
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00007ffd34a438d0
RBP: 0000000000000004 R08: 00007ffd34a43910 R09: 000000000000027d
R10: 0000000000000008 R11: 0000000000000286 R12: 0000000000000008
R13: 00007ffd34a43910 R14: 0000000000000003 R15: 0000000000008000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_find_init+0x72/0x1f0 fs/hfs/bfind.c:21
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0
RSP: 0018:ffffc90003c6f400 EFLAGS: 00010202
RAX: 1ffff9200078de9f RBX: ffffc90003c6f4f8 RCX: ffff888035149e00
RDX: 0000000000000000 RSI: ffffc90003c6f4e0 RDI: ffffc90003c6f4f0
RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000
R10: ffffc90003c6f4e0 R11: fffff5200078dea3 R12: ffffc90003c6f4e0
R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008
FS: 00005555872c5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e407035d98 CR3: 0000000077626000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: d8 48 c1 fmuls -0x3f(%rax)
3: e8 03 42 80 3c call 0x3c80420b
8: 28 00 sub %al,(%rax)
a: 74 08 je 0x14
c: 48 89 df mov %rbx,%rdi
f: e8 44 1b 84 ff call 0xff841b58
14: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
1b: 48 89 2c 24 mov %rbp,(%rsp)
1f: 4c 8d 75 40 lea 0x40(%rbp),%r14
23: 4d 89 f7 mov %r14,%r15
26: 49 c1 ef 03 shr $0x3,%r15
* 2a: 43 0f b6 04 2f movzbl (%r15,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 10 01 00 00 jne 0x147
37: 41 8b 06 mov (%r14),%eax
3a: 8d 7c 00 04 lea 0x4(%rax,%rax,1),%edi
3e: be .byte 0xbe
3f: c0 .byte 0xc0
final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 1 UID: 0 PID: 5817 Comm: syz-executor170 Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:hfs_find_init+0x72/0x1f0 fs/hfs/bfind.c:21
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0
RSP: 0018:ffffc90003c6f400 EFLAGS: 00010202
RAX: 1ffff9200078de9f RBX: ffffc90003c6f4f8 RCX: ffff888035149e00
RDX: 0000000000000000 RSI: ffffc90003c6f4e0 RDI: ffffc90003c6f4f0
RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000
R10: ffffc90003c6f4e0 R11: fffff5200078dea3 R12: ffffc90003c6f4e0
R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008
FS: 00005555872c5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e407035d98 CR3: 0000000077626000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_get_block+0x4f4/0xb60 fs/hfs/extent.c:366
block_read_full_folio+0x3ee/0xae0 fs/buffer.c:2396
filemap_read_folio+0x148/0x3b0 mm/filemap.c:2366
do_read_cache_folio+0x373/0x5b0 mm/filemap.c:3826
do_read_cache_page mm/filemap.c:3892 [inline]
read_cache_page+0x5b/0x170 mm/filemap.c:3901
read_mapping_page include/linux/pagemap.h:1005 [inline]
hfs_btree_open+0x506/0xf40 fs/hfs/btree.c:78
hfs_mdb_get+0x1443/0x21b0 fs/hfs/mdb.c:199
hfs_fill_super+0x38c/0x6b0 fs/hfs/super.c:337
get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8f52167dea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd34a438b8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd34a438d0 RCX: 00007f8f52167dea
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00007ffd34a438d0
RBP: 0000000000000004 R08: 00007ffd34a43910 R09: 000000000000027d
R10: 0000000000000008 R11: 0000000000000286 R12: 0000000000000008
R13: 00007ffd34a43910 R14: 0000000000000003 R15: 0000000000008000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_find_init+0x72/0x1f0 fs/hfs/bfind.c:21
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 44 1b 84 ff 48 c7 03 00 00 00 00 48 89 2c 24 4c 8d 75 40 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 0f 85 10 01 00 00 41 8b 06 8d 7c 00 04 be c0
RSP: 0018:ffffc90003c6f400 EFLAGS: 00010202
RAX: 1ffff9200078de9f RBX: ffffc90003c6f4f8 RCX: ffff888035149e00
RDX: 0000000000000000 RSI: ffffc90003c6f4e0 RDI: ffffc90003c6f4f0
RBP: 0000000000000000 R08: ffffffff8280707f R09: 0000000000000000
R10: ffffc90003c6f4e0 R11: fffff5200078dea3 R12: ffffc90003c6f4e0
R13: dffffc0000000000 R14: 0000000000000040 R15: 0000000000000008
FS: 00005555872c5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e407035d98 CR3: 0000000077626000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: d8 48 c1 fmuls -0x3f(%rax)
3: e8 03 42 80 3c call 0x3c80420b
8: 28 00 sub %al,(%rax)
a: 74 08 je 0x14
c: 48 89 df mov %rbx,%rdi
f: e8 44 1b 84 ff call 0xff841b58
14: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
1b: 48 89 2c 24 mov %rbp,(%rsp)
1f: 4c 8d 75 40 lea 0x40(%rbp),%r14
23: 4d 89 f7 mov %r14,%r15
26: 49 c1 ef 03 shr $0x3,%r15
* 2a: 43 0f b6 04 2f movzbl (%r15,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 10 01 00 00 jne 0x147
37: 41 8b 06 mov (%r14),%eax
3a: 8d 7c 00 04 lea 0x4(%rax,%rax,1),%edi
3e: be .byte 0xbe
3f: c0 .byte 0xc0