Extracting prog: 2m23.261124525s
Minimizing prog: 4m3.072555669s
Simplifying prog options: 0s
Extracting C: 1m26.14306505s
Simplifying C: 8m34.144438505s
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:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000a00)='./file0\x00', 0x1008413, &(0x7f0000000140)={[{@noload}, {@bsdgroups}, {@barrier_val={'barrier', 0x3d, 0x3}}, {@noblock_validity}]}, 0x0, 0x525, &(0x7f0000000c00)="$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")
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=46.278045559s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing program (duration=46.278045559s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
program did not crash
testing program (duration=46.278045559s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
program did not crash
extracting C reproducer
testing compiled C program (duration=46.278045559s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
simplifying C reproducer
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing compiled C program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
testing program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
validation run: crashed=true
testing program (duration=46.278045559s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
validation run: crashed=true
testing program (duration=46.278045559s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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")
syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x60e8c20, 0x0, 0x0, 0x0, &(0x7f0000000000))
program crashed: BUG: unable to handle kernel paging request in ext4_ext_map_blocks
validation run: crashed=true
reproducing took 21m26.025395404s
repro crashed as (corrupted=false):
EXT4-fs error (device loop0): ext4_dirty_inode:6143: inode #2: comm syz.0.17: mark_inode_dirty error
EXT4-fs error (device loop0): ext4_do_update_inode:5255: inode #2: comm syz.0.17: corrupted inode contents
EXT4-fs error (device loop0): __ext4_ext_dirty:206: inode #2: comm syz.0.17: mark_inode_dirty error
BUG: unable to handle page fault for address: ffffffffffffff93
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD cf35067 P4D cf35067 PUD cf37067 PMD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5925 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ext4_ext_drop_refs fs/ext4/extents.c:119 [inline]
RIP: 0010:ext4_free_ext_path fs/ext4/extents.c:128 [inline]
RIP: 0010:ext4_ext_map_blocks+0x2d11/0x6800 fs/ext4/extents.c:4498
Code: 8b 7c 24 10 4d 85 ff 0f 84 bd 00 00 00 e8 f7 e0 58 ff 49 8d 7f 08 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 3d 1e 00 00 <41> 0f b7 47 08 c1 e0 04 48 8d 04 40 48 89 44 24 08 4d 89 fc 49 8d
RSP: 0018:ffffc900032e7500 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffffffff8b RCX: ffff888079405a00
RDX: 0000000000000000 RSI: ffffffff8d2d5670 RDI: ffffffffffffff93
RBP: ffffc900032e77b0 R08: ffff888079405a00 R09: 0000000000000002
R10: 00000000ffffffe4 R11: 0000000000000000 R12: 0000000000000001
R13: 1ffff9200065cecc R14: dffffc0000000000 R15: ffffffffffffff8b
FS: 000055557f072500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff93 CR3: 000000002e08b000 CR4: 00000000003506e0
Call Trace:
ext4_map_blocks+0x9e2/0x1b80 fs/ext4/inode.c:654
ext4_getblk+0x1d0/0x6f0 fs/ext4/inode.c:864
ext4_bread+0x2a/0x170 fs/ext4/inode.c:920
ext4_append+0x2c2/0x560 fs/ext4/namei.c:83
ext4_add_entry+0x9eb/0xd90 fs/ext4/namei.c:2511
ext4_mkdir+0x55c/0xce0 fs/ext4/namei.c:3081
vfs_mkdir+0x296/0x440 fs/namei.c:4121
do_mkdirat+0x1dc/0x450 fs/namei.c:4144
__do_sys_mkdirat fs/namei.c:4159 [inline]
__se_sys_mkdirat fs/namei.c:4157 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1dca99bc47
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb88569f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007ffcb8856a80 RCX: 00007f1dca99bc47
RDX: 00000000000001ff RSI: 0000200000000100 RDI: 00000000ffffff9c
RBP: 0000200000000000 R08: 0000200000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000200000000100
R13: 00007ffcb8856a40 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffffffffffffff93
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_drop_refs fs/ext4/extents.c:119 [inline]
RIP: 0010:ext4_free_ext_path fs/ext4/extents.c:128 [inline]
RIP: 0010:ext4_ext_map_blocks+0x2d11/0x6800 fs/ext4/extents.c:4498
Code: 8b 7c 24 10 4d 85 ff 0f 84 bd 00 00 00 e8 f7 e0 58 ff 49 8d 7f 08 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 3d 1e 00 00 <41> 0f b7 47 08 c1 e0 04 48 8d 04 40 48 89 44 24 08 4d 89 fc 49 8d
RSP: 0018:ffffc900032e7500 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffffffff8b RCX: ffff888079405a00
RDX: 0000000000000000 RSI: ffffffff8d2d5670 RDI: ffffffffffffff93
RBP: ffffc900032e77b0 R08: ffff888079405a00 R09: 0000000000000002
R10: 00000000ffffffe4 R11: 0000000000000000 R12: 0000000000000001
R13: 1ffff9200065cecc R14: dffffc0000000000 R15: ffffffffffffff8b
FS: 000055557f072500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff93 CR3: 000000002e08b000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
0: 8b 7c 24 10 mov 0x10(%rsp),%edi
4: 4d 85 ff test %r15,%r15
7: 0f 84 bd 00 00 00 je 0xca
d: e8 f7 e0 58 ff call 0xff58e109
12: 49 8d 7f 08 lea 0x8(%r15),%rdi
16: 48 89 f8 mov %rdi,%rax
19: 48 c1 e8 03 shr $0x3,%rax
1d: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax
22: 84 c0 test %al,%al
24: 0f 85 3d 1e 00 00 jne 0x1e67
* 2a: 41 0f b7 47 08 movzwl 0x8(%r15),%eax <-- trapping instruction
2f: c1 e0 04 shl $0x4,%eax
32: 48 8d 04 40 lea (%rax,%rax,2),%rax
36: 48 89 44 24 08 mov %rax,0x8(%rsp)
3b: 4d 89 fc mov %r15,%r12
3e: 49 rex.WB
3f: 8d .byte 0x8d
final repro crashed as (corrupted=false):
EXT4-fs error (device loop0): ext4_dirty_inode:6143: inode #2: comm syz.0.17: mark_inode_dirty error
EXT4-fs error (device loop0): ext4_do_update_inode:5255: inode #2: comm syz.0.17: corrupted inode contents
EXT4-fs error (device loop0): __ext4_ext_dirty:206: inode #2: comm syz.0.17: mark_inode_dirty error
BUG: unable to handle page fault for address: ffffffffffffff93
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD cf35067 P4D cf35067 PUD cf37067 PMD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5925 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ext4_ext_drop_refs fs/ext4/extents.c:119 [inline]
RIP: 0010:ext4_free_ext_path fs/ext4/extents.c:128 [inline]
RIP: 0010:ext4_ext_map_blocks+0x2d11/0x6800 fs/ext4/extents.c:4498
Code: 8b 7c 24 10 4d 85 ff 0f 84 bd 00 00 00 e8 f7 e0 58 ff 49 8d 7f 08 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 3d 1e 00 00 <41> 0f b7 47 08 c1 e0 04 48 8d 04 40 48 89 44 24 08 4d 89 fc 49 8d
RSP: 0018:ffffc900032e7500 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffffffff8b RCX: ffff888079405a00
RDX: 0000000000000000 RSI: ffffffff8d2d5670 RDI: ffffffffffffff93
RBP: ffffc900032e77b0 R08: ffff888079405a00 R09: 0000000000000002
R10: 00000000ffffffe4 R11: 0000000000000000 R12: 0000000000000001
R13: 1ffff9200065cecc R14: dffffc0000000000 R15: ffffffffffffff8b
FS: 000055557f072500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff93 CR3: 000000002e08b000 CR4: 00000000003506e0
Call Trace:
ext4_map_blocks+0x9e2/0x1b80 fs/ext4/inode.c:654
ext4_getblk+0x1d0/0x6f0 fs/ext4/inode.c:864
ext4_bread+0x2a/0x170 fs/ext4/inode.c:920
ext4_append+0x2c2/0x560 fs/ext4/namei.c:83
ext4_add_entry+0x9eb/0xd90 fs/ext4/namei.c:2511
ext4_mkdir+0x55c/0xce0 fs/ext4/namei.c:3081
vfs_mkdir+0x296/0x440 fs/namei.c:4121
do_mkdirat+0x1dc/0x450 fs/namei.c:4144
__do_sys_mkdirat fs/namei.c:4159 [inline]
__se_sys_mkdirat fs/namei.c:4157 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1dca99bc47
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb88569f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007ffcb8856a80 RCX: 00007f1dca99bc47
RDX: 00000000000001ff RSI: 0000200000000100 RDI: 00000000ffffff9c
RBP: 0000200000000000 R08: 0000200000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000200000000100
R13: 00007ffcb8856a40 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffffffffffffff93
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_drop_refs fs/ext4/extents.c:119 [inline]
RIP: 0010:ext4_free_ext_path fs/ext4/extents.c:128 [inline]
RIP: 0010:ext4_ext_map_blocks+0x2d11/0x6800 fs/ext4/extents.c:4498
Code: 8b 7c 24 10 4d 85 ff 0f 84 bd 00 00 00 e8 f7 e0 58 ff 49 8d 7f 08 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 3d 1e 00 00 <41> 0f b7 47 08 c1 e0 04 48 8d 04 40 48 89 44 24 08 4d 89 fc 49 8d
RSP: 0018:ffffc900032e7500 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffffffff8b RCX: ffff888079405a00
RDX: 0000000000000000 RSI: ffffffff8d2d5670 RDI: ffffffffffffff93
RBP: ffffc900032e77b0 R08: ffff888079405a00 R09: 0000000000000002
R10: 00000000ffffffe4 R11: 0000000000000000 R12: 0000000000000001
R13: 1ffff9200065cecc R14: dffffc0000000000 R15: ffffffffffffff8b
FS: 000055557f072500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff93 CR3: 000000002e08b000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
0: 8b 7c 24 10 mov 0x10(%rsp),%edi
4: 4d 85 ff test %r15,%r15
7: 0f 84 bd 00 00 00 je 0xca
d: e8 f7 e0 58 ff call 0xff58e109
12: 49 8d 7f 08 lea 0x8(%r15),%rdi
16: 48 89 f8 mov %rdi,%rax
19: 48 c1 e8 03 shr $0x3,%rax
1d: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax
22: 84 c0 test %al,%al
24: 0f 85 3d 1e 00 00 jne 0x1e67
* 2a: 41 0f b7 47 08 movzwl 0x8(%r15),%eax <-- trapping instruction
2f: c1 e0 04 shl $0x4,%eax
32: 48 8d 04 40 lea (%rax,%rax,2),%rax
36: 48 89 44 24 08 mov %rax,0x8(%rsp)
3b: 4d 89 fc mov %r15,%r12
3e: 49 rex.WB
3f: 8d .byte 0x8d