Extracting prog: 5m48.835221678s
Minimizing prog: 16m7.662490412s
Simplifying prog options: 0s
Extracting C: 37.096841061s
Simplifying C: 12m25.620651438s
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:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program crashed: general protection fault in dvb_usbv2_generic_write
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-syz_usb_connect
detailed listing:
executing program 0:
syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
ioctl$I2C_SMBUS(0xffffffffffffffff, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(0x0, 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, 0x0)
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, 0x0})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, 0x0, 0x0)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
simplifying C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program did not crash
testing compiled C program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {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_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {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:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing compiled C program (duration=1m40s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
program crashed: general protection fault in dvb_usbv2_generic_write
testing program (duration=1m40s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program crashed: general protection fault in dvb_usbv2_generic_write
validation run: crashed=true
testing program (duration=1m40s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program crashed: general protection fault in dvb_usbv2_generic_write
validation run: crashed=true
testing program (duration=1m40s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-ioctl$I2C_SMBUS-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000001c0)={0x1, 0x23, 0x4, &(0x7f0000000040)={0x21, "925aa8dac7e1b89d67d3c56c7f51a46081a3cfa1fc5c965efd90694e22f8e24d9a"}})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000034276d20402003c68e010000000109021200010000000009040001"], 0x0)
program crashed: general protection fault in dvb_usbv2_generic_write
validation run: crashed=true
reproducing took 45m7.555514084s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000018: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
CPU: 1 UID: 0 PID: 6025 Comm: syz.3.25 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x149/0x1550 kernel/locking/mutex.c:821
Code: c0 80 c5 77 9a 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 35 12 00 00 83 3d 05 a7 a7 0e 00 75 22 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <80> 3c 18 00 74 05 e8 5c e0 63 f6 4d 39 64 24 58 0f 85 48 11 00 00
RSP: 0018:ffffc900037971a0 EFLAGS: 00010206
RAX: 0000000000000018 RBX: dffffc0000000000 RCX: ffffffff9a77c503
RDX: 0000000000000000 RSI: ffffffff8e4aeb49 RDI: 00000000000000c0
RBP: ffffc90003797338 R08: ffffc900037972a7 R09: 0000000000000000
R10: ffffc90003797280 R11: fffff520006f2e55 R12: 0000000000000068
R13: 0000000000000000 R14: 1ffff920006f2e48 R15: 0000000000000000
FS: 000055557429b500(0000) GS:ffff888125059000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08fa073780 CR3: 0000000078f64000 CR4: 00000000003526f0
Call Trace:
dvb_usbv2_generic_write+0x26/0x60 drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c:77
mxl111sf_ctrl_msg+0x160/0x2f0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:73
mxl111sf_write_reg+0xa9/0x1b0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:123
mxl111sf_i2c_start drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:130 [inline]
mxl111sf_i2c_sw_xfer_msg drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:-1 [inline]
mxl111sf_i2c_xfer+0x463/0x5060 drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:813
__i2c_transfer+0x7be/0x1fe0 drivers/i2c/i2c-core-base.c:-1
i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:471 [inline]
__i2c_smbus_xfer+0x1584/0x27d0 drivers/i2c/i2c-core-smbus.c:621
i2c_smbus_xfer+0x1f4/0x310 drivers/i2c/i2c-core-smbus.c:547
i2cdev_ioctl_smbus+0x407/0x700 drivers/i2c/i2c-dev.c:389
i2cdev_ioctl+0x615/0x880 drivers/i2c/i2c-dev.c:478
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f08fa19de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc42109878 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f08fa425fa0 RCX: 00007f08fa19de59
RDX: 00002000000001c0 RSI: 0000000000000720 RDI: 0000000000000003
RBP: 00007f08fa233e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f08fa425fac R14: 00007f08fa425fa0 R15: 00007f08fa425fa0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x149/0x1550 kernel/locking/mutex.c:821
Code: c0 80 c5 77 9a 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 35 12 00 00 83 3d 05 a7 a7 0e 00 75 22 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <80> 3c 18 00 74 05 e8 5c e0 63 f6 4d 39 64 24 58 0f 85 48 11 00 00
RSP: 0018:ffffc900037971a0 EFLAGS: 00010206
RAX: 0000000000000018 RBX: dffffc0000000000 RCX: ffffffff9a77c503
RDX: 0000000000000000 RSI: ffffffff8e4aeb49 RDI: 00000000000000c0
RBP: ffffc90003797338 R08: ffffc900037972a7 R09: 0000000000000000
R10: ffffc90003797280 R11: fffff520006f2e55 R12: 0000000000000068
R13: 0000000000000000 R14: 1ffff920006f2e48 R15: 0000000000000000
FS: 000055557429b500(0000) GS:ffff888125059000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b73a73780 CR3: 0000000078f64000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: c0 80 c5 77 9a 48 c1 rolb $0xc1,0x489a77c5(%rax)
7: e8 03 0f b6 04 call 0x4b60f0f
c: 18 84 c0 0f 85 35 12 sbb %al,0x1235850f(%rax,%rax,8)
13: 00 00 add %al,(%rax)
15: 83 3d 05 a7 a7 0e 00 cmpl $0x0,0xea7a705(%rip) # 0xea7a721
1c: 75 22 jne 0x40
1e: 49 8d 7c 24 58 lea 0x58(%r12),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction
2e: 74 05 je 0x35
30: e8 5c e0 63 f6 call 0xf663e091
35: 4d 39 64 24 58 cmp %r12,0x58(%r12)
3a: 0f 85 48 11 00 00 jne 0x1188
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000018: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
CPU: 1 UID: 0 PID: 6025 Comm: syz.3.25 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x149/0x1550 kernel/locking/mutex.c:821
Code: c0 80 c5 77 9a 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 35 12 00 00 83 3d 05 a7 a7 0e 00 75 22 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <80> 3c 18 00 74 05 e8 5c e0 63 f6 4d 39 64 24 58 0f 85 48 11 00 00
RSP: 0018:ffffc900037971a0 EFLAGS: 00010206
RAX: 0000000000000018 RBX: dffffc0000000000 RCX: ffffffff9a77c503
RDX: 0000000000000000 RSI: ffffffff8e4aeb49 RDI: 00000000000000c0
RBP: ffffc90003797338 R08: ffffc900037972a7 R09: 0000000000000000
R10: ffffc90003797280 R11: fffff520006f2e55 R12: 0000000000000068
R13: 0000000000000000 R14: 1ffff920006f2e48 R15: 0000000000000000
FS: 000055557429b500(0000) GS:ffff888125059000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08fa073780 CR3: 0000000078f64000 CR4: 00000000003526f0
Call Trace:
dvb_usbv2_generic_write+0x26/0x60 drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c:77
mxl111sf_ctrl_msg+0x160/0x2f0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:73
mxl111sf_write_reg+0xa9/0x1b0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:123
mxl111sf_i2c_start drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:130 [inline]
mxl111sf_i2c_sw_xfer_msg drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:-1 [inline]
mxl111sf_i2c_xfer+0x463/0x5060 drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:813
__i2c_transfer+0x7be/0x1fe0 drivers/i2c/i2c-core-base.c:-1
i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:471 [inline]
__i2c_smbus_xfer+0x1584/0x27d0 drivers/i2c/i2c-core-smbus.c:621
i2c_smbus_xfer+0x1f4/0x310 drivers/i2c/i2c-core-smbus.c:547
i2cdev_ioctl_smbus+0x407/0x700 drivers/i2c/i2c-dev.c:389
i2cdev_ioctl+0x615/0x880 drivers/i2c/i2c-dev.c:478
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f08fa19de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc42109878 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f08fa425fa0 RCX: 00007f08fa19de59
RDX: 00002000000001c0 RSI: 0000000000000720 RDI: 0000000000000003
RBP: 00007f08fa233e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f08fa425fac R14: 00007f08fa425fa0 R15: 00007f08fa425fa0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x149/0x1550 kernel/locking/mutex.c:821
Code: c0 80 c5 77 9a 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 35 12 00 00 83 3d 05 a7 a7 0e 00 75 22 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <80> 3c 18 00 74 05 e8 5c e0 63 f6 4d 39 64 24 58 0f 85 48 11 00 00
RSP: 0018:ffffc900037971a0 EFLAGS: 00010206
RAX: 0000000000000018 RBX: dffffc0000000000 RCX: ffffffff9a77c503
RDX: 0000000000000000 RSI: ffffffff8e4aeb49 RDI: 00000000000000c0
RBP: ffffc90003797338 R08: ffffc900037972a7 R09: 0000000000000000
R10: ffffc90003797280 R11: fffff520006f2e55 R12: 0000000000000068
R13: 0000000000000000 R14: 1ffff920006f2e48 R15: 0000000000000000
FS: 000055557429b500(0000) GS:ffff888125059000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b73a73780 CR3: 0000000078f64000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: c0 80 c5 77 9a 48 c1 rolb $0xc1,0x489a77c5(%rax)
7: e8 03 0f b6 04 call 0x4b60f0f
c: 18 84 c0 0f 85 35 12 sbb %al,0x1235850f(%rax,%rax,8)
13: 00 00 add %al,(%rax)
15: 83 3d 05 a7 a7 0e 00 cmpl $0x0,0xea7a705(%rip) # 0xea7a721
1c: 75 22 jne 0x40
1e: 49 8d 7c 24 58 lea 0x58(%r12),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction
2e: 74 05 je 0x35
30: e8 5c e0 63 f6 call 0xf663e091
35: 4d 39 64 24 58 cmp %r12,0x58(%r12)
3a: 0f 85 48 11 00 00 jne 0x1188