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program crashed: kernel BUG in ocfs2_write_block single: successfully extracted reproducer found reproducer with 1 syscalls minimizing guilty program extracting C reproducer testing compiled C program (duration=1m4.434821059s, {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$ocfs2 program crashed: kernel BUG in ocfs2_write_block simplifying C reproducer testing compiled C program (duration=1m4.434821059s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {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$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {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$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {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$ocfs2 program crashed: kernel BUG in ocfs2_write_block testing compiled C program (duration=1m4.434821059s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: kernel BUG in ocfs2_write_block reproducing took 11m59.117744846s repro crashed as (corrupted=false): WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ kernel BUG at fs/ocfs2/buffer_head_io.c:45! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5829 Comm: syz-executor158 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:ocfs2_write_block+0x62a/0x6b0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 4f ab 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 ce 4b 11 00 eb 2e e8 17 04 11 fe 90 <0f> 0b e8 0f 04 11 fe 90 0f 0b e8 57 11 3b 08 e8 02 04 11 fe 49 bd RSP: 0018:ffffc9000383ede0 EFLAGS: 00010293 RAX: ffffffff8383d599 RBX: 0000000000000000 RCX: ffff888012368000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000383eeb0 R08: ffffffff8383d0f0 R09: 1ffffffff2037bad R10: dffffc0000000000 R11: fffffbfff2037bae R12: ffff88807e340af8 R13: dffffc0000000000 R14: ffff88807e340ae0 R15: ffff888035984000 FS: 000055557e9d3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d2cabe4a48 CR3: 0000000035090000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_update_disk_slot+0x498/0x690 fs/ocfs2/slot_map.c:197 ocfs2_find_slot+0x4cb/0xaa0 fs/ocfs2/slot_map.c:482 ocfs2_mount_volume+0x1a0/0x1940 fs/ocfs2/super.c:1804 ocfs2_fill_super+0x475a/0x5750 fs/ocfs2/super.c:1084 mount_bdev+0x20a/0x2d0 fs/super.c:1693 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 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: 0033:0x7f647b2421aa 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:00007ffca2cf6248 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffca2cf6260 RCX: 00007f647b2421aa RDX: 0000000020004440 RSI: 0000000020000040 RDI: 00007ffca2cf6260 RBP: 0000000000000004 R08: 00007ffca2cf62a0 R09: 0000000000004420 R10: 00000000000008c0 R11: 0000000000000282 R12: 00000000000008c0 R13: 00007ffca2cf62a0 R14: 0000000000000003 R15: 0000000001000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_block+0x62a/0x6b0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 4f ab 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 ce 4b 11 00 eb 2e e8 17 04 11 fe 90 <0f> 0b e8 0f 04 11 fe 90 0f 0b e8 57 11 3b 08 e8 02 04 11 fe 49 bd RSP: 0018:ffffc9000383ede0 EFLAGS: 00010293 RAX: ffffffff8383d599 RBX: 0000000000000000 RCX: ffff888012368000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000383eeb0 R08: ffffffff8383d0f0 R09: 1ffffffff2037bad R10: dffffc0000000000 R11: fffffbfff2037bae R12: ffff88807e340af8 R13: dffffc0000000000 R14: ffff88807e340ae0 R15: ffff888035984000 FS: 000055557e9d3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d2cabe4a48 CR3: 0000000035090000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 final repro crashed as (corrupted=false): WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ kernel BUG at fs/ocfs2/buffer_head_io.c:45! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5829 Comm: syz-executor158 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:ocfs2_write_block+0x62a/0x6b0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 4f ab 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 ce 4b 11 00 eb 2e e8 17 04 11 fe 90 <0f> 0b e8 0f 04 11 fe 90 0f 0b e8 57 11 3b 08 e8 02 04 11 fe 49 bd RSP: 0018:ffffc9000383ede0 EFLAGS: 00010293 RAX: ffffffff8383d599 RBX: 0000000000000000 RCX: ffff888012368000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000383eeb0 R08: ffffffff8383d0f0 R09: 1ffffffff2037bad R10: dffffc0000000000 R11: fffffbfff2037bae R12: ffff88807e340af8 R13: dffffc0000000000 R14: ffff88807e340ae0 R15: ffff888035984000 FS: 000055557e9d3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d2cabe4a48 CR3: 0000000035090000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_update_disk_slot+0x498/0x690 fs/ocfs2/slot_map.c:197 ocfs2_find_slot+0x4cb/0xaa0 fs/ocfs2/slot_map.c:482 ocfs2_mount_volume+0x1a0/0x1940 fs/ocfs2/super.c:1804 ocfs2_fill_super+0x475a/0x5750 fs/ocfs2/super.c:1084 mount_bdev+0x20a/0x2d0 fs/super.c:1693 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 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: 0033:0x7f647b2421aa 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:00007ffca2cf6248 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffca2cf6260 RCX: 00007f647b2421aa RDX: 0000000020004440 RSI: 0000000020000040 RDI: 00007ffca2cf6260 RBP: 0000000000000004 R08: 00007ffca2cf62a0 R09: 0000000000004420 R10: 00000000000008c0 R11: 0000000000000282 R12: 00000000000008c0 R13: 00007ffca2cf62a0 R14: 0000000000000003 R15: 0000000001000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_block+0x62a/0x6b0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 4f ab 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 ce 4b 11 00 eb 2e e8 17 04 11 fe 90 <0f> 0b e8 0f 04 11 fe 90 0f 0b e8 57 11 3b 08 e8 02 04 11 fe 49 bd RSP: 0018:ffffc9000383ede0 EFLAGS: 00010293 RAX: ffffffff8383d599 RBX: 0000000000000000 RCX: ffff888012368000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000383eeb0 R08: ffffffff8383d0f0 R09: 1ffffffff2037bad R10: dffffc0000000000 R11: fffffbfff2037bae R12: ffff88807e340af8 R13: dffffc0000000000 R14: ffff88807e340ae0 R15: ffff888035984000 FS: 000055557e9d3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d2cabe4a48 CR3: 0000000035090000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400