Extracting prog: 1m15.511595644s
Minimizing prog: 5m33.273709851s
Simplifying prog options: 0s
Extracting C: 20.678439613s
Simplifying C: 9m26.727020164s


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:4 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}}): socket$netlink-socket$nl_route-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, 0x0, 0x0)
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r1, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program crashed: BUG: corrupted list in flow_block_cb_setup_simple
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-socket$nl_route-sendmsg$nl_route-socket$nl_netfilter
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-socket$nl_route-sendmsg$nl_route-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, 0x0, 0x0)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-socket$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={0x0, 0x104}}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB], 0x104}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program did not crash
testing compiled C program (duration=30s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false 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}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a20000000000a010400000000000000000500000a0900010073797a30000000005c000000030a010400000000000000000500000a0900010073797a30000000000900030073797a30000000002800048008000140000000000800024000000001140003006e657464657673696d3000000000000008000a400000000260000000060a010400000000000000000500000a0900010073797a30000000000900020073797a300000000034000480300001800e000100696d6d6564696174650000001c0002800800014000000000100002800c0002800800018000000001140000001100010000000000000000000500000a1a3adf5c7fcb8ada8864503ad727fc482bd79d5279fa21d895c1c7ee92dd6fb6c40e5b23c83101a70903d2246daf413bc4f929a57455b531c5c6677f694d9fac7fb6099f0023086e6ac91236b088b93de3725b0b4d1b0509480466122b01c094c321f7304207e116ceaf428d05aac0bce7f7ac5bd51664e157599091"], 0x104}}, 0x0)

program crashed: BUG: corrupted list in flow_block_cb_setup_simple
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$nl_route-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
socket$netlink(0x10, 0x3, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x1400, &(0x7f0000000040)={&(0x7f0000000500)=ANY=[@ANYBLOB="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"], 0x104}}, 0x0)

program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
validation run: crashed=true
reproducing took 19m6.160107189s
repro crashed as (corrupted=false):
 slab kmalloc-192 start ffff888026cf7200 pointer offset 0 size 192
==================================================================
BUG: KASAN: slab-use-after-free in __list_add_valid_or_report+0x129/0x130 lib/list_debug.c:32
Read of size 8 at addr ffff888026cf7200 by task syz.1.991/7011

CPU: 0 UID: 0 PID: 7011 Comm: syz.1.991 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 __list_add_valid_or_report+0x129/0x130 lib/list_debug.c:32
 __list_add_valid include/linux/list.h:104 [inline]
 __list_add include/linux/list.h:169 [inline]
 list_add_tail include/linux/list.h:206 [inline]
 flow_block_cb_setup_simple+0x75c/0xa20 net/core/flow_offload.c:359
 nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
 nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf741efec
Code: Unable to access opcode bytes at 0xf741efc2.
RSP: 002b:00000000ffe04c2c EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000800000c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Allocated by task 7010:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 flow_block_cb_alloc net/core/flow_offload.c:265 [inline]
 flow_block_cb_setup_simple+0x57c/0xa20 net/core/flow_offload.c:354
 nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
 nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Freed by task 7010:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 nft_flow_offload_unbind.isra.0+0x315/0x4c0 net/netfilter/nf_tables_offload.c:344
 nft_block_setup net/netfilter/nf_tables_offload.c:361 [inline]
 nft_block_offload_cmd+0x295/0x2f0 net/netfilter/nf_tables_offload.c:401
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_abort+0x4c7/0x670 net/netfilter/nf_tables_offload.c:532
 nft_flow_rule_offload_commit+0x5ac/0x6a0 net/netfilter/nf_tables_offload.c:620
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

The buggy address belongs to the object at ffff888026cf7200
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes inside of
 freed 192-byte region [ffff888026cf7200, ffff888026cf72c0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26cf7
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801d0423c0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5826, tgid 5826 (syz-executor), ts 43752367372
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_noprof+0x67c/0x840 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 new_dir fs/proc/proc_sysctl.c:965 [inline]
 get_subdir fs/proc/proc_sysctl.c:1009 [inline]
 sysctl_mkdir_p fs/proc/proc_sysctl.c:1319 [inline]
 __register_sysctl_table+0xbe4/0x1650 fs/proc/proc_sysctl.c:1394
 register_net_sysctl_sz+0x325/0x420 net/sysctl_net.c:172
 __devinet_sysctl_register+0x1b9/0x360 net/ipv4/devinet.c:2745
 devinet_sysctl_register net/ipv4/devinet.c:2785 [inline]
 devinet_sysctl_register+0x17b/0x210 net/ipv4/devinet.c:2775
 inetdev_init+0x2b8/0x570 net/ipv4/devinet.c:291
 inetdev_event+0x827/0x17f0 net/ipv4/devinet.c:1590
 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2275
 call_netdevice_notifiers_extack net/core/dev.c:2313 [inline]
 call_netdevice_notifiers net/core/dev.c:2327 [inline]
 register_netdevice+0x1998/0x25a0 net/core/dev.c:11587
page last free pid 5166 tgid 5166 ts 13666231576 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_noprof+0x269/0x6a0 mm/slub.c:5010
 alloc_filename fs/namei.c:147 [inline]
 do_getname+0x35/0x390 fs/namei.c:187
 class_filename_flags_constructor include/linux/fs.h:2589 [inline]
 do_readlinkat+0xa9/0x370 fs/stat.c:569
 __do_sys_readlink fs/stat.c:605 [inline]
 __se_sys_readlink fs/stat.c:602 [inline]
 __x64_sys_readlink+0x78/0xc0 fs/stat.c:602
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x121/0x770 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888026cf7100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888026cf7180: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888026cf7200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888026cf7280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888026cf7300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
 slab kmalloc-192 start ffff888026cf7200 pointer offset 0 size 192
==================================================================
BUG: KASAN: slab-use-after-free in __list_add_valid_or_report+0x129/0x130 lib/list_debug.c:32
Read of size 8 at addr ffff888026cf7200 by task syz.1.991/7011

CPU: 0 UID: 0 PID: 7011 Comm: syz.1.991 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 __list_add_valid_or_report+0x129/0x130 lib/list_debug.c:32
 __list_add_valid include/linux/list.h:104 [inline]
 __list_add include/linux/list.h:169 [inline]
 list_add_tail include/linux/list.h:206 [inline]
 flow_block_cb_setup_simple+0x75c/0xa20 net/core/flow_offload.c:359
 nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
 nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf741efec
Code: Unable to access opcode bytes at 0xf741efc2.
RSP: 002b:00000000ffe04c2c EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000800000c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Allocated by task 7010:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 flow_block_cb_alloc net/core/flow_offload.c:265 [inline]
 flow_block_cb_setup_simple+0x57c/0xa20 net/core/flow_offload.c:354
 nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
 nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Freed by task 7010:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 nft_flow_offload_unbind.isra.0+0x315/0x4c0 net/netfilter/nf_tables_offload.c:344
 nft_block_setup net/netfilter/nf_tables_offload.c:361 [inline]
 nft_block_offload_cmd+0x295/0x2f0 net/netfilter/nf_tables_offload.c:401
 nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
 nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
 nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
 nft_flow_rule_offload_abort+0x4c7/0x670 net/netfilter/nf_tables_offload.c:532
 nft_flow_rule_offload_commit+0x5ac/0x6a0 net/netfilter/nf_tables_offload.c:620
 nf_tables_commit+0xd7b/0x9300 net/netfilter/nf_tables_api.c:11006
 nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
 nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2713
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2767
 __sys_sendmsg+0x160/0x210 net/socket.c:2799
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

The buggy address belongs to the object at ffff888026cf7200
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes inside of
 freed 192-byte region [ffff888026cf7200, ffff888026cf72c0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26cf7
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801d0423c0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5826, tgid 5826 (syz-executor), ts 43752367372
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_noprof+0x67c/0x840 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 new_dir fs/proc/proc_sysctl.c:965 [inline]
 get_subdir fs/proc/proc_sysctl.c:1009 [inline]
 sysctl_mkdir_p fs/proc/proc_sysctl.c:1319 [inline]
 __register_sysctl_table+0xbe4/0x1650 fs/proc/proc_sysctl.c:1394
 register_net_sysctl_sz+0x325/0x420 net/sysctl_net.c:172
 __devinet_sysctl_register+0x1b9/0x360 net/ipv4/devinet.c:2745
 devinet_sysctl_register net/ipv4/devinet.c:2785 [inline]
 devinet_sysctl_register+0x17b/0x210 net/ipv4/devinet.c:2775
 inetdev_init+0x2b8/0x570 net/ipv4/devinet.c:291
 inetdev_event+0x827/0x17f0 net/ipv4/devinet.c:1590
 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2275
 call_netdevice_notifiers_extack net/core/dev.c:2313 [inline]
 call_netdevice_notifiers net/core/dev.c:2327 [inline]
 register_netdevice+0x1998/0x25a0 net/core/dev.c:11587
page last free pid 5166 tgid 5166 ts 13666231576 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_noprof+0x269/0x6a0 mm/slub.c:5010
 alloc_filename fs/namei.c:147 [inline]
 do_getname+0x35/0x390 fs/namei.c:187
 class_filename_flags_constructor include/linux/fs.h:2589 [inline]
 do_readlinkat+0xa9/0x370 fs/stat.c:569
 __do_sys_readlink fs/stat.c:605 [inline]
 __se_sys_readlink fs/stat.c:602 [inline]
 __x64_sys_readlink+0x78/0xc0 fs/stat.c:602
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x121/0x770 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888026cf7100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888026cf7180: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888026cf7200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888026cf7280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888026cf7300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================