Extracting prog: 3m28.746608605s Minimizing prog: 1h39m6.414308763s Simplifying prog options: 0s Extracting C: 1m55.274640896s Simplifying C: 10m46.697144596s 1 programs, timeouts [30s 6m0s] extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program crashed: possible deadlock in trie_delete_elem single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00'}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r0}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{0xffffffffffffffff, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r1}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, 0x0, 0x0) r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r0}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, 0x0, &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), 0x0}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r1 = bpf$PROG_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r1}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, 0x0, &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r1}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r1}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB, @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000040)='mm_page_alloc\x00', r2}, 0xc) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x95, 0x9, 0x1, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x18, 0xd, &(0x7f00000002c0)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000003000000650000000800000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={0x0, r2}, 0x18) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem testing compiled C program (duration=6m0s, {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}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN program crashed: possible deadlock in trie_delete_elem reproducing took 1h55m17.132722775s repro crashed as (corrupted=false): ============================================ WARNING: possible recursive locking detected 6.12.0-rc4-syzkaller #0 Not tainted -------------------------------------------- syz-executor307/5240 is trying to acquire lock: ffff88807e981a00 (&trie->lock){....}-{2:2}, at: trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 but task is already holding lock: ffff88802f768a00 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&trie->lock); lock(&trie->lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by syz-executor307/5240: #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_map_update_value+0x3c4/0x540 kernel/bpf/syscall.c:202 #1: ffff88802f768a00 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2317 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2361 stack backtrace: CPU: 0 UID: 0 PID: 5240 Comm: syz-executor307 Not tainted 6.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3037 check_deadlock kernel/locking/lockdep.c:3089 [inline] validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3891 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 bpf_prog_8c8ab8634bca3061+0x43/0x4d bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2318 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2361 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:177 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline] __alloc_pages_noprof+0x6dc/0x710 mm/page_alloc.c:4755 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x120 mm/slub.c:2412 allocate_slab+0x5a/0x2f0 mm/slub.c:2578 new_slab mm/slub.c:2631 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818 __slab_alloc+0x58/0xa0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] __do_kmalloc_node mm/slub.c:4263 [inline] __kmalloc_node_noprof+0x286/0x440 mm/slub.c:4270 kmalloc_node_noprof include/linux/slab.h:905 [inline] bpf_map_kmalloc_node+0xd3/0x1c0 kernel/bpf/syscall.c:422 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:299 [inline] trie_update_elem+0x1cd/0xc00 kernel/bpf/lpm_trie.c:342 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x51a/0x6f0 kernel/bpf/syscall.c:1626 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5637 __do_sys_bpf kernel/bpf/syscall.c:5756 [inline] __se_sys_bpf kernel/bpf/syscall.c:5754 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5754 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff96cc50da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007fff23e69fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff96cc50da9 RDX: 0000000000000020 RSI: 0000000020000000 RDI: 0000000000000002 RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010591 R13: 00007fff23e69fdc R14: 00007fff23e69ff0 R15: 00007fff23e69fe0 final repro crashed as (corrupted=false): ============================================ WARNING: possible recursive locking detected 6.12.0-rc4-syzkaller #0 Not tainted -------------------------------------------- syz-executor307/5240 is trying to acquire lock: ffff88807e981a00 (&trie->lock){....}-{2:2}, at: trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 but task is already holding lock: ffff88802f768a00 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&trie->lock); lock(&trie->lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by syz-executor307/5240: #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_map_update_value+0x3c4/0x540 kernel/bpf/syscall.c:202 #1: ffff88802f768a00 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2317 [inline] #2: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2361 stack backtrace: CPU: 0 UID: 0 PID: 5240 Comm: syz-executor307 Not tainted 6.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3037 check_deadlock kernel/locking/lockdep.c:3089 [inline] validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3891 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 bpf_prog_8c8ab8634bca3061+0x43/0x4d bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2318 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2361 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:177 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline] __alloc_pages_noprof+0x6dc/0x710 mm/page_alloc.c:4755 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x120 mm/slub.c:2412 allocate_slab+0x5a/0x2f0 mm/slub.c:2578 new_slab mm/slub.c:2631 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818 __slab_alloc+0x58/0xa0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] __do_kmalloc_node mm/slub.c:4263 [inline] __kmalloc_node_noprof+0x286/0x440 mm/slub.c:4270 kmalloc_node_noprof include/linux/slab.h:905 [inline] bpf_map_kmalloc_node+0xd3/0x1c0 kernel/bpf/syscall.c:422 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:299 [inline] trie_update_elem+0x1cd/0xc00 kernel/bpf/lpm_trie.c:342 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x51a/0x6f0 kernel/bpf/syscall.c:1626 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5637 __do_sys_bpf kernel/bpf/syscall.c:5756 [inline] __se_sys_bpf kernel/bpf/syscall.c:5754 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5754 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff96cc50da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007fff23e69fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff96cc50da9 RDX: 0000000000000020 RSI: 0000000020000000 RDI: 0000000000000002 RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010591 R13: 00007fff23e69fdc R14: 00007fff23e69ff0 R15: 00007fff23e69fe0