Extracting prog: 1m54.423255266s
Minimizing prog: 17m8.123772562s
Simplifying prog options: 0s
Extracting C: 34.422222066s
Simplifying C: 9m47.607814223s


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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program crashed: WARNING in mark_buffer_dirty
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
creat(&(0x7f0000000080)='./file1\x00', 0x0)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
write$binfmt_script(0xffffffffffffffff, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
r0 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r0, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000440), 0x208e24b) (async)
r0 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r0, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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}}): open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(0x0, 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(0x0, 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, 0x0, 0x0) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(0x0, 0x0)
write$binfmt_script(r1, &(0x7f0000001440)={'#! ', './bus'}, 0x9)

program did not crash
testing program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
detailed listing:
executing program 0:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x1000000, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x4, 0x93, &(0x7f0000002280)="$eJzszrGpwmAUBeDzp3pVFniFG/w7OIqk1M5KETKRqzhCNrCwtYlIqthYiCjyfcW9HLgXzul6/E+bjH0yPtju9uvVZprhJzVJSpK/JIt2yufl/Ga4HLqhpLvvT/UEAABe16TOckmtT5/6NxYCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+DK3AAAA//+K8CJb")
open(&(0x7f00000000c0)='./bus\x00', 0x14d042, 0x0)
r0 = open(&(0x7f0000000400)='./bus\x00', 0x14113e, 0x0)
write$binfmt_script(r0, &(0x7f0000000440), 0x208e24b) (async)
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x0)
write$binfmt_script(r1, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=49.516100971s, {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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
simplifying C reproducer
testing compiled C program (duration=49.516100971s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program did not crash
testing compiled C program (duration=49.516100971s, {Threaded:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program did not crash
testing compiled C program (duration=49.516100971s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
testing compiled C program (duration=49.516100971s, {Threaded:true 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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
testing compiled C program (duration=49.516100971s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
testing compiled C program (duration=49.516100971s, {Threaded:true 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$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program did not crash
testing compiled C program (duration=49.516100971s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
testing compiled C program (duration=49.516100971s, {Threaded:true 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:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$bfs-open-open-write$binfmt_script-creat-write$binfmt_script
program crashed: WARNING in mark_buffer_dirty
reproducing took 29m24.577087397s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4184 at fs/buffer.c:1084 mark_buffer_dirty+0x318/0x490 fs/buffer.c:1084
Modules linked in:
CPU: 1 PID: 4184 Comm: syz-executor193 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:mark_buffer_dirty+0x318/0x490 fs/buffer.c:1084
Code: 89 f7 e8 6b 80 e6 ff 49 8b 3e be 04 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 f4 d0 fc ff e8 3f 08 a1 ff eb 80 e8 38 08 a1 ff <0f> 0b e9 33 fd ff ff e8 2c 08 a1 ff 0f 0b e9 55 fd ff ff e8 20 08
RSP: 0018:ffffc90002e5f7c8 EFLAGS: 00010293
RAX: ffffffff81d6b9e8 RBX: ffff88806e865ae0 RCX: ffff888017de8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880778e8018 R08: dffffc0000000000 R09: ffffed100e3d4900
R10: 0000000000000000 R11: 0000000000000040 R12: ffff88807b2d7200
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100dd0cb5c
FS:  00007f9245dad6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a8ea1c000 CR3: 0000000076501000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x814/0xa60 fs/bfs/file.c:125
 __block_write_begin_int+0x54e/0x15a0 fs/buffer.c:2012
 __block_write_begin fs/buffer.c:2062 [inline]
 block_write_begin+0x4d/0xc0 fs/buffer.c:2122
 bfs_write_begin+0x37/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x2aa/0x530 mm/filemap.c:3785
 __generic_file_write_iter+0x25f/0x4e0 mm/filemap.c:3912
 generic_file_write_iter+0xa6/0x1b0 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x712/0xd00 fs/read_write.c:594
 ksys_write+0x14d/0x250 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9245df0c59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9245dad218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9245e786c8 RCX: 00007f9245df0c59
RDX: 000000000208e24b RSI: 0000200000000440 RDI: 0000000000000004
RBP: 00007f9245e786c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9245e450c0
R13: 0000200000000080 R14: 0031656c69662f2e R15: 0000200000001440
 </TASK>

final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4184 at fs/buffer.c:1084 mark_buffer_dirty+0x318/0x490 fs/buffer.c:1084
Modules linked in:
CPU: 1 PID: 4184 Comm: syz-executor193 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:mark_buffer_dirty+0x318/0x490 fs/buffer.c:1084
Code: 89 f7 e8 6b 80 e6 ff 49 8b 3e be 04 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 f4 d0 fc ff e8 3f 08 a1 ff eb 80 e8 38 08 a1 ff <0f> 0b e9 33 fd ff ff e8 2c 08 a1 ff 0f 0b e9 55 fd ff ff e8 20 08
RSP: 0018:ffffc90002e5f7c8 EFLAGS: 00010293
RAX: ffffffff81d6b9e8 RBX: ffff88806e865ae0 RCX: ffff888017de8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880778e8018 R08: dffffc0000000000 R09: ffffed100e3d4900
R10: 0000000000000000 R11: 0000000000000040 R12: ffff88807b2d7200
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100dd0cb5c
FS:  00007f9245dad6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a8ea1c000 CR3: 0000000076501000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x814/0xa60 fs/bfs/file.c:125
 __block_write_begin_int+0x54e/0x15a0 fs/buffer.c:2012
 __block_write_begin fs/buffer.c:2062 [inline]
 block_write_begin+0x4d/0xc0 fs/buffer.c:2122
 bfs_write_begin+0x37/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x2aa/0x530 mm/filemap.c:3785
 __generic_file_write_iter+0x25f/0x4e0 mm/filemap.c:3912
 generic_file_write_iter+0xa6/0x1b0 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x712/0xd00 fs/read_write.c:594
 ksys_write+0x14d/0x250 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9245df0c59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9245dad218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9245e786c8 RCX: 00007f9245df0c59
RDX: 000000000208e24b RSI: 0000200000000440 RDI: 0000000000000004
RBP: 00007f9245e786c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9245e450c0
R13: 0000200000000080 R14: 0031656c69662f2e R15: 0000200000001440
 </TASK>