Extracting prog: 3m39.579183384s Minimizing prog: 4m44.277105999s Simplifying prog options: 0s Extracting C: 56.024602042s Simplifying C: 23m20.494247773s 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-writev-syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file1\x00', 0x105842, 0x100) writev(r0, &(0x7f0000000a40)=[{0x0}, {&(0x7f0000000e00)='t', 0x2000}, {0x0, 0x2200}, {&(0x7f0000001000)="d6", 0x20c00}], 0x21) syz_mount_image$ext4(&(0x7f0000000140)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x1018e58, &(0x7f0000000000), 0x4, 0x627, &(0x7f0000000180)="$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") program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-writev-syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file1\x00', 0x105842, 0x100) writev(r0, &(0x7f0000000a40)=[{0x0}, {&(0x7f0000000e00)='t', 0x2000}, {0x0, 0x2200}, {&(0x7f0000001000)="d6", 0x20c00}], 0x21) syz_mount_image$ext4(&(0x7f0000000140)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x1018e58, &(0x7f0000000000), 0x4, 0x627, &(0x7f0000000180)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=4m2.01064236s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-writev detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file1\x00', 0x105842, 0x100) writev(r0, &(0x7f0000000a40)=[{0x0}, {&(0x7f0000000e00)='t', 0x2000}, {0x0, 0x2200}, {&(0x7f0000001000)="d6", 0x20c00}], 0x21) program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing program (duration=4m2.01064236s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file1\x00', 0x105842, 0x100) program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing program (duration=4m2.01064236s, {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:false Wifi:false IEEE802154:false 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(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra extracting C reproducer testing compiled C program (duration=4m2.01064236s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra simplifying C reproducer testing compiled C program (duration=4m2.01064236s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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$ext4 program did not crash testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra validation run: crashed=true testing program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false 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(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra validation run: crashed=true testing program (duration=4m2.01064236s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000580)='ext4\x00', &(0x7f0000000040)='./file1\x00', 0x21081e, &(0x7f0000000480)={[{@grpquota}, {@bsdgroups}, {@quota}]}, 0x1, 0x506, &(0x7f0000001d00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra validation run: crashed=true reproducing took 35m46.161633382s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:87 [inline] BUG: KASAN: null-ptr-deref in set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] BUG: KASAN: null-ptr-deref in do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Write of size 8 at addr 0000000000000000 by task udevd/396 CPU: 1 PID: 396 Comm: udevd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_report+0x3d/0x60 mm/kasan/report.c:423 kasan_report+0x122/0x150 mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:87 [inline] set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f94bbaa7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe1f13d500 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f94bc17a880 RCX: 00007f94bbaa7407 RDX: 0000000000000200 RSI: 00007f94bc16f000 RDI: 0000000000000009 RBP: 000055779e1af790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000001f6 R13: 0000000000007e00 R14: 000055779e1b0d78 R15: 00007f94bc23f39c ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000003 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 396 Comm: udevd Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 7c 1e d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000a37878 EFLAGS: 00010246 RAX: ffff888116959400 RBX: 0000000000000007 RCX: ffff888116959440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a378c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 0000000000000038 R14: 0000000000000000 R15: ffff88810b6e5850 FS: 00007f94bc17a880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000122506000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f94bbaa7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe1f13d500 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f94bc17a880 RCX: 00007f94bbaa7407 RDX: 0000000000000200 RSI: 00007f94bc16f000 RDI: 0000000000000009 RBP: 000055779e1af790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000001f6 R13: 0000000000007e00 R14: 000055779e1b0d78 R15: 00007f94bc23f39c Modules linked in: CR2: 0000000000000003 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 7c 1e d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000a37878 EFLAGS: 00010246 RAX: ffff888116959400 RBX: 0000000000000007 RCX: ffff888116959440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a378c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 0000000000000038 R14: 0000000000000000 R15: ffff88810b6e5850 FS: 00007f94bc17a880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000122506000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 72 10 jb 0x18 8: e8 7c 1e d2 ff call 0xffd21e89 d: 49 83 ee 01 sub $0x1,%r14 11: 73 78 jae 0x8b 13: e9 87 00 00 00 jmp 0x9f 18: 49 89 c4 mov %rax,%r12 1b: 48 89 c7 mov %rax,%rdi 1e: be 08 00 00 00 mov $0x8,%esi 23: e8 d1 ba 17 00 call 0x17baf9 * 28: f0 41 80 4c 24 03 10 lock orb $0x10,0x3(%r12) <-- trapping instruction 2f: 4c 89 e7 mov %r12,%rdi 32: 48 83 c7 34 add $0x34,%rdi 36: be 04 00 00 00 mov $0x4,%esi 3b: e8 .byte 0xe8 3c: b9 .byte 0xb9 3d: ba .byte 0xba final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:87 [inline] BUG: KASAN: null-ptr-deref in set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] BUG: KASAN: null-ptr-deref in do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Write of size 8 at addr 0000000000000000 by task udevd/396 CPU: 1 PID: 396 Comm: udevd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_report+0x3d/0x60 mm/kasan/report.c:423 kasan_report+0x122/0x150 mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:87 [inline] set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f94bbaa7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe1f13d500 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f94bc17a880 RCX: 00007f94bbaa7407 RDX: 0000000000000200 RSI: 00007f94bc16f000 RDI: 0000000000000009 RBP: 000055779e1af790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000001f6 R13: 0000000000007e00 R14: 000055779e1b0d78 R15: 00007f94bc23f39c ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000003 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 396 Comm: udevd Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 7c 1e d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000a37878 EFLAGS: 00010246 RAX: ffff888116959400 RBX: 0000000000000007 RCX: ffff888116959440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a378c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 0000000000000038 R14: 0000000000000000 R15: ffff88810b6e5850 FS: 00007f94bc17a880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000122506000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f94bbaa7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe1f13d500 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f94bc17a880 RCX: 00007f94bbaa7407 RDX: 0000000000000200 RSI: 00007f94bc16f000 RDI: 0000000000000009 RBP: 000055779e1af790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000001f6 R13: 0000000000007e00 R14: 000055779e1b0d78 R15: 00007f94bc23f39c Modules linked in: CR2: 0000000000000003 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 7c 1e d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000a37878 EFLAGS: 00010246 RAX: ffff888116959400 RBX: 0000000000000007 RCX: ffff888116959440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a378c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 0000000000000038 R14: 0000000000000000 R15: ffff88810b6e5850 FS: 00007f94bc17a880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000122506000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 72 10 jb 0x18 8: e8 7c 1e d2 ff call 0xffd21e89 d: 49 83 ee 01 sub $0x1,%r14 11: 73 78 jae 0x8b 13: e9 87 00 00 00 jmp 0x9f 18: 49 89 c4 mov %rax,%r12 1b: 48 89 c7 mov %rax,%rdi 1e: be 08 00 00 00 mov $0x8,%esi 23: e8 d1 ba 17 00 call 0x17baf9 * 28: f0 41 80 4c 24 03 10 lock orb $0x10,0x3(%r12) <-- trapping instruction 2f: 4c 89 e7 mov %r12,%rdi 32: 48 83 c7 34 add $0x34,%rdi 36: be 04 00 00 00 mov $0x4,%esi 3b: e8 .byte 0xe8 3c: b9 .byte 0xb9 3d: ba .byte 0xba