Extracting prog: 2m1.120808839s
Minimizing prog: 32m2.045561017s
Simplifying prog options: 0s
Extracting C: 1m43.449158273s
Simplifying C: 16m10.163126286s


extracting reproducer from 30 programs
first checking the prog from the crash report
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-syz_io_uring_setup-syz_io_uring_submit-openat$iommufd-ioctl$IOMMU_IOAS_ALLOC-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
syz_io_uring_setup(0x497, &(0x7f0000000400)={0x0, 0x7079, 0x0, 0x4, 0x288}, 0x0, &(0x7f0000000180)=<r1=>0x0)
syz_io_uring_submit(0x0, r1, &(0x7f00000002c0)=@IORING_OP_WRITEV={0x2, 0x0, 0x0, @fd_index=0x4, 0x0, 0x0})
r2 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_IOAS_ALLOC(r2, 0x3b81, &(0x7f0000000380)={0xc, 0x0, <r3=>0x0})
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r2, 0x3ba0, &(0x7f0000000200)={0x48, 0x2, r3}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
single: successfully extracted reproducer
found reproducer with 13 syscalls
minimizing guilty program
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-syz_io_uring_setup-syz_io_uring_submit-openat$iommufd-ioctl$IOMMU_IOAS_ALLOC
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
syz_io_uring_setup(0x497, &(0x7f0000000400)={0x0, 0x7079, 0x0, 0x4, 0x288}, 0x0, &(0x7f0000000180)=<r1=>0x0)
syz_io_uring_submit(0x0, r1, &(0x7f00000002c0)=@IORING_OP_WRITEV={0x2, 0x0, 0x0, @fd_index=0x4, 0x0, 0x0})
r2 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_IOAS_ALLOC(r2, 0x3b81, &(0x7f0000000380)={0xc})

program did not crash
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-syz_io_uring_setup-syz_io_uring_submit-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
syz_io_uring_setup(0x497, &(0x7f0000000400)={0x0, 0x7079, 0x0, 0x4, 0x288}, 0x0, &(0x7f0000000180)=<r1=>0x0)
syz_io_uring_submit(0x0, r1, &(0x7f00000002c0)=@IORING_OP_WRITEV={0x2, 0x0, 0x0, @fd_index=0x4, 0x0, 0x0})
r2 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r2, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-syz_io_uring_setup-syz_io_uring_submit-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
syz_io_uring_setup(0x497, &(0x7f0000000400)={0x0, 0x7079, 0x0, 0x4, 0x288}, 0x0, &(0x7f0000000180)=<r1=>0x0)
syz_io_uring_submit(0x0, r1, &(0x7f00000002c0)=@IORING_OP_WRITEV={0x2, 0x0, 0x0, @fd_index=0x4, 0x0, 0x0})
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(0xffffffffffffffff, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program did not crash
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-syz_io_uring_setup-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
syz_io_uring_setup(0x497, &(0x7f0000000400)={0x0, 0x7079, 0x0, 0x4, 0x288}, 0x0, &(0x7f0000000180))
r1 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r1, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$cgroup_root-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
r1 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r1, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-mount$fuse-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
r1 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r1, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$kvm-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
r1 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r1, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mmap-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000007, 0x38011, r0, 0x0)
r1 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r1, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(0xffffffffffffffff, &(0x7f0000000300)={0xe, 0x18, 0xfa00, @id_resuseaddr={0x0}}, 0x20)
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-write$RDMA_USER_CM_CMD_CREATE_ID-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f}}, 0x20)
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$fb0-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
openat$fb0(0xffffffffffffff9c, &(0x7f0000000000), 0x402, 0x0)
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x35, 0x0, 0x0)
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48})

program did not crash
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
r0 = openat$iommufd(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, &(0x7f0000000200)={0x48}) (fail_nth: 23)

program did not crash
testing program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
detailed listing:
executing program 0:
r0 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS(r0, 0x3ba0, 0x0) (fail_nth: 23)

program did not crash
extracting C reproducer
testing compiled C program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
simplifying C reproducer
testing compiled C program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program did not crash
testing compiled C program (duration=53.753382079s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
testing compiled C program (duration=53.753382079s, {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}}): openat$iommufd-ioctl$IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS
program crashed: KASAN: slab-use-after-free Read in software_node_notify_remove
reproducing took 51m56.77869197s
repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 00007ffd59b5e970 RCX: 00007f5cb7cd36e9
RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
RBP: 0000000000000002 R08: 00007ffd59b5e6f6 R09: 00000000000000a0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd59b5e96c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>
iommufd_mock iommufd_mock0: Adding to iommu group 0
==================================================================
BUG: KASAN: slab-use-after-free in software_node_notify_remove+0x1bc/0x1c0 drivers/base/swnode.c:1108
Read of size 1 at addr ffff88802f6b0908 by task syz-executor401/5835

CPU: 1 UID: 0 PID: 5835 Comm: syz-executor401 Not tainted 6.14.0-syzkaller-12456-gacc4d5ff0b61 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 software_node_notify_remove+0x1bc/0x1c0 drivers/base/swnode.c:1108
 device_platform_notify_remove drivers/base/core.c:2387 [inline]
 device_del+0x594/0x9b0 drivers/base/core.c:3858
 device_unregister+0x20/0xc0 drivers/base/core.c:3896
 mock_dev_destroy drivers/iommu/iommufd/selftest.c:960 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:1022 [inline]
 iommufd_test+0x3715/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5cb7cd36e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 1a 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd59b5e958 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffd59b5e970 RCX: 00007f5cb7cd36e9
RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
RBP: 0000000000000002 R08: 00007ffd59b5e6f6 R09: 00000000000000a0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd59b5e96c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 5835:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x9d/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x236/0x370 mm/slub.c:4362
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 swnode_register+0x5a/0x540 drivers/base/swnode.c:790
 fwnode_create_software_node+0x199/0x1f0 drivers/base/swnode.c:949
 device_create_managed_software_node+0xd5/0x1f0 drivers/base/swnode.c:1060
 mock_dev_create drivers/iommu/iommufd/selftest.c:942 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:989 [inline]
 iommufd_test+0x3335/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5835:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2389 [inline]
 slab_free mm/slub.c:4646 [inline]
 kfree+0x198/0x430 mm/slub.c:4845
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 software_node_notify_remove+0x159/0x1c0 drivers/base/swnode.c:1106
 device_platform_notify_remove drivers/base/core.c:2387 [inline]
 device_del+0x594/0x9b0 drivers/base/core.c:3858
 device_unregister+0x20/0xc0 drivers/base/core.c:3896
 mock_dev_destroy drivers/iommu/iommufd/selftest.c:960 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:1022 [inline]
 iommufd_test+0x3715/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802f6b0800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 264 bytes inside of
 freed 512-byte region [ffff88802f6b0800, ffff88802f6b0a00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f6b0
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041c80 0000000000000000 0000000000000001
raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041c80 0000000000000000 0000000000000001
head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000bdac01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5506, tgid 5506 (dhcpcd), ts 59376335600, free_ts 57874491073
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1717
 prep_new_page mm/page_alloc.c:1725 [inline]
 get_page_from_freelist+0x352b/0x36c0 mm/page_alloc.c:3652
 __alloc_frozen_pages_noprof+0x211/0x5b0 mm/page_alloc.c:4934
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2459 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2623
 new_slab mm/slub.c:2676 [inline]
 ___slab_alloc+0xc3b/0x1500 mm/slub.c:3862
 __slab_alloc+0x58/0xa0 mm/slub.c:3952
 __slab_alloc_node mm/slub.c:4027 [inline]
 slab_alloc_node mm/slub.c:4188 [inline]
 __do_kmalloc_node mm/slub.c:4330 [inline]
 __kmalloc_noprof+0x2ea/0x4d0 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 tomoyo_init_log+0x1bae/0x2150 security/tomoyo/audit.c:275
 tomoyo_supervisor+0x3c0/0x18b0 security/tomoyo/common.c:2198
 tomoyo_audit_net_log security/tomoyo/network.c:367 [inline]
 tomoyo_audit_unix_log security/tomoyo/network.c:406 [inline]
 tomoyo_unix_entry security/tomoyo/network.c:574 [inline]
 tomoyo_check_unix_address+0x5d1/0x8e0 security/tomoyo/network.c:605
 tomoyo_socket_listen_permission+0x2a1/0x3d0 security/tomoyo/network.c:671
 security_socket_listen+0x90/0x280 security/security.c:4643
 __sys_listen_socket net/socket.c:1862 [inline]
 __sys_listen net/socket.c:1879 [inline]
 __do_sys_listen net/socket.c:1884 [inline]
 __se_sys_listen net/socket.c:1882 [inline]
 __x64_sys_listen+0x13e/0x230 net/socket.c:1882
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5217 tgid 5217 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 __slab_free+0x2c6/0x390 mm/slub.c:4557
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 getname_flags+0xb6/0x530 fs/namei.c:146
 user_path_at+0x24/0x60 fs/namei.c:3084
 do_utimes_path fs/utimes.c:95 [inline]
 do_utimes+0x120/0x290 fs/utimes.c:140
 __do_sys_utimensat fs/utimes.c:159 [inline]
 __se_sys_utimensat fs/utimes.c:143 [inline]
 __x64_sys_utimensat+0x151/0x250 fs/utimes.c:143
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802f6b0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f6b0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f6b0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88802f6b0980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f6b0a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 00007ffd59b5e970 RCX: 00007f5cb7cd36e9
RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
RBP: 0000000000000002 R08: 00007ffd59b5e6f6 R09: 00000000000000a0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd59b5e96c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>
iommufd_mock iommufd_mock0: Adding to iommu group 0
==================================================================
BUG: KASAN: slab-use-after-free in software_node_notify_remove+0x1bc/0x1c0 drivers/base/swnode.c:1108
Read of size 1 at addr ffff88802f6b0908 by task syz-executor401/5835

CPU: 1 UID: 0 PID: 5835 Comm: syz-executor401 Not tainted 6.14.0-syzkaller-12456-gacc4d5ff0b61 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 software_node_notify_remove+0x1bc/0x1c0 drivers/base/swnode.c:1108
 device_platform_notify_remove drivers/base/core.c:2387 [inline]
 device_del+0x594/0x9b0 drivers/base/core.c:3858
 device_unregister+0x20/0xc0 drivers/base/core.c:3896
 mock_dev_destroy drivers/iommu/iommufd/selftest.c:960 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:1022 [inline]
 iommufd_test+0x3715/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5cb7cd36e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 1a 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd59b5e958 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffd59b5e970 RCX: 00007f5cb7cd36e9
RDX: 0000200000000200 RSI: 0000000000003ba0 RDI: 0000000000000003
RBP: 0000000000000002 R08: 00007ffd59b5e6f6 R09: 00000000000000a0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd59b5e96c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 5835:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x9d/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x236/0x370 mm/slub.c:4362
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 swnode_register+0x5a/0x540 drivers/base/swnode.c:790
 fwnode_create_software_node+0x199/0x1f0 drivers/base/swnode.c:949
 device_create_managed_software_node+0xd5/0x1f0 drivers/base/swnode.c:1060
 mock_dev_create drivers/iommu/iommufd/selftest.c:942 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:989 [inline]
 iommufd_test+0x3335/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5835:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2389 [inline]
 slab_free mm/slub.c:4646 [inline]
 kfree+0x198/0x430 mm/slub.c:4845
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 software_node_notify_remove+0x159/0x1c0 drivers/base/swnode.c:1106
 device_platform_notify_remove drivers/base/core.c:2387 [inline]
 device_del+0x594/0x9b0 drivers/base/core.c:3858
 device_unregister+0x20/0xc0 drivers/base/core.c:3896
 mock_dev_destroy drivers/iommu/iommufd/selftest.c:960 [inline]
 iommufd_test_mock_domain drivers/iommu/iommufd/selftest.c:1022 [inline]
 iommufd_test+0x3715/0x56a0 drivers/iommu/iommufd/selftest.c:1866
 iommufd_fops_ioctl+0x4fc/0x610 drivers/iommu/iommufd/main.c:419
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802f6b0800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 264 bytes inside of
 freed 512-byte region [ffff88802f6b0800, ffff88802f6b0a00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f6b0
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041c80 0000000000000000 0000000000000001
raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041c80 0000000000000000 0000000000000001
head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000bdac01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5506, tgid 5506 (dhcpcd), ts 59376335600, free_ts 57874491073
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1717
 prep_new_page mm/page_alloc.c:1725 [inline]
 get_page_from_freelist+0x352b/0x36c0 mm/page_alloc.c:3652
 __alloc_frozen_pages_noprof+0x211/0x5b0 mm/page_alloc.c:4934
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2459 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2623
 new_slab mm/slub.c:2676 [inline]
 ___slab_alloc+0xc3b/0x1500 mm/slub.c:3862
 __slab_alloc+0x58/0xa0 mm/slub.c:3952
 __slab_alloc_node mm/slub.c:4027 [inline]
 slab_alloc_node mm/slub.c:4188 [inline]
 __do_kmalloc_node mm/slub.c:4330 [inline]
 __kmalloc_noprof+0x2ea/0x4d0 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 tomoyo_init_log+0x1bae/0x2150 security/tomoyo/audit.c:275
 tomoyo_supervisor+0x3c0/0x18b0 security/tomoyo/common.c:2198
 tomoyo_audit_net_log security/tomoyo/network.c:367 [inline]
 tomoyo_audit_unix_log security/tomoyo/network.c:406 [inline]
 tomoyo_unix_entry security/tomoyo/network.c:574 [inline]
 tomoyo_check_unix_address+0x5d1/0x8e0 security/tomoyo/network.c:605
 tomoyo_socket_listen_permission+0x2a1/0x3d0 security/tomoyo/network.c:671
 security_socket_listen+0x90/0x280 security/security.c:4643
 __sys_listen_socket net/socket.c:1862 [inline]
 __sys_listen net/socket.c:1879 [inline]
 __do_sys_listen net/socket.c:1884 [inline]
 __se_sys_listen net/socket.c:1882 [inline]
 __x64_sys_listen+0x13e/0x230 net/socket.c:1882
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5217 tgid 5217 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 __slab_free+0x2c6/0x390 mm/slub.c:4557
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 getname_flags+0xb6/0x530 fs/namei.c:146
 user_path_at+0x24/0x60 fs/namei.c:3084
 do_utimes_path fs/utimes.c:95 [inline]
 do_utimes+0x120/0x290 fs/utimes.c:140
 __do_sys_utimensat fs/utimes.c:159 [inline]
 __se_sys_utimensat fs/utimes.c:143 [inline]
 __x64_sys_utimensat+0x151/0x250 fs/utimes.c:143
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802f6b0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f6b0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f6b0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88802f6b0980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f6b0a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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