Extracting prog: 4m5.618851636s
Minimizing prog: 1h22m42.677733051s
Simplifying prog options: 0s
Extracting C: 33.553383279s
Simplifying C: 11m17.789209495s


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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in corrupted
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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={0x0}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x14, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0x3c}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x44, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x18, 0x4, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x4}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0x6c}}, 0x0)

program did not crash
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x5c, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x30, 0x4, 0x0, 0x1, [{0x2c, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x1c, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x4}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0x84}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing compiled C program (duration=6m0s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing compiled C program (duration=6m0s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
testing program (duration=6m0s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
validation run: crashed=true
testing program (duration=6m0s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
validation run: crashed=true
testing program (duration=6m0s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x10)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000004c0)={{0x14, 0x10, 0x1, 0x0, 0x0, {0xa}}, [@NFT_MSG_NEWRULE={0x84, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2}, [@NFTA_RULE_EXPRESSIONS={0x58, 0x4, 0x0, 0x1, [{0x54, 0x1, 0x0, 0x1, @match={{0xa}, @val={0x44, 0x2, 0x0, 0x1, [@NFTA_MATCH_INFO={0x2c, 0x3, "73ad6153669faaa3221f5223f828b499b49208f8130fe52e3efc770b8878b3c728ec16efbe94fd77"}, @NFTA_MATCH_REV={0x8}, @NFTA_MATCH_NAME={0xb, 0x1, 'nfacct\x00'}]}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14, 0x11, 0x1, 0x0, 0x0, {0x3}}}, 0xac}}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in nfacct_mt_checkentry
validation run: crashed=true
reproducing took 1h45m17.690938522s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in string_nocheck lib/vsprintf.c:653 [inline]
BUG: KASAN: slab-out-of-bounds in string+0x231/0x2b0 lib/vsprintf.c:735
Read of size 1 at addr ffff88807744c2c8 by task syz.0.16/6061

CPU: 0 UID: 0 PID: 6061 Comm: syz.0.16 Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x230 mm/kasan/report.c:480
 kasan_report+0x118/0x150 mm/kasan/report.c:593
 string_nocheck lib/vsprintf.c:653 [inline]
 string+0x231/0x2b0 lib/vsprintf.c:735
 vsnprintf+0x739/0xf00 lib/vsprintf.c:2926
 vprintk_store+0x3c7/0xd00 kernel/printk/printk.c:2279
 vprintk_emit+0x21e/0x7a0 kernel/printk/printk.c:2426
 _printk+0xcf/0x120 kernel/printk/printk.c:2475
 nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41
 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523
 __nft_match_init+0x63a/0x840 net/netfilter/nft_compat.c:520
 nf_tables_newexpr net/netfilter/nf_tables_api.c:3496 [inline]
 nf_tables_newrule+0x178f/0x2890 net/netfilter/nf_tables_api.c:4327
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:525 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:648 [inline]
 nfnetlink_rcv+0x1132/0x2520 net/netfilter/nfnetlink.c:666
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f39b1d8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffda61a05c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f39b1fb5fa0 RCX: 00007f39b1d8e929
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 00007f39b1e10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f39b1fb5fa0 R14: 00007f39b1fb5fa0 R15: 0000000000000003
 </TASK>

Allocated by task 6061:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4365 [inline]
 __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4377
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 nf_tables_newrule+0x1506/0x2890 net/netfilter/nf_tables_api.c:4309
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:525 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:648 [inline]
 nfnetlink_rcv+0x1132/0x2520 net/netfilter/nfnetlink.c:666
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88807744c280
 which belongs to the cache kmalloc-cg-96 of size 96
The buggy address is located 0 bytes to the right of
 allocated 72-byte region [ffff88807744c280, ffff88807744c2c8)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7744c
memcg:ffff888032dbfa01
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801a849640 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080200020 00000000f5000000 ffff888032dbfa01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5987, tgid 5987 (syz-executor), ts 111592816889, free_ts 111592450723
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:2487 [inline]
 allocate_slab+0x8a/0x370 mm/slub.c:2655
 new_slab mm/slub.c:2709 [inline]
 ___slab_alloc+0xbeb/0x1410 mm/slub.c:3891
 __slab_alloc mm/slub.c:3981 [inline]
 __slab_alloc_node mm/slub.c:4056 [inline]
 slab_alloc_node mm/slub.c:4217 [inline]
 __do_kmalloc_node mm/slub.c:4364 [inline]
 __kvmalloc_node_noprof+0x429/0x5f0 mm/slub.c:5052
 allocate_hook_entries_size net/netfilter/core.c:58 [inline]
 nf_hook_entries_grow+0x27c/0x710 net/netfilter/core.c:137
 __nf_register_net_hook+0x2c9/0x930 net/netfilter/core.c:432
 nf_register_net_hook+0xb2/0x190 net/netfilter/core.c:575
 nf_register_net_hooks+0x44/0x1b0 net/netfilter/core.c:591
 nf_nat_register_fn+0x3df/0x5a0 net/netfilter/nf_nat_core.c:1240
 ip6t_nat_register_lookups net/ipv6/netfilter/ip6table_nat.c:79 [inline]
 ip6table_nat_table_init+0xd4/0x2e0 net/ipv6/netfilter/ip6table_nat.c:123
 xt_find_table_lock+0x309/0x3e0 net/netfilter/x_tables.c:1260
 xt_request_find_table_lock+0x26/0x100 net/netfilter/x_tables.c:1285
 get_info net/ipv6/netfilter/ip6_tables.c:979 [inline]
 do_ip6t_get_ctl+0x730/0x1180 net/ipv6/netfilter/ip6_tables.c:1668
page last free pid 5987 tgid 5987 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2895
 vfree+0x25a/0x400 mm/vmalloc.c:3434
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:882 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
 do_ip6t_get_ctl+0xeb0/0x1180 net/ipv6/netfilter/ip6_tables.c:1677
 nf_getsockopt+0x26b/0x290 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x1ed/0x290 net/ipv6/ipv6_sockglue.c:1469
 do_sock_getsockopt+0x35d/0x650 net/socket.c:2405
 __sys_getsockopt net/socket.c:2434 [inline]
 __do_sys_getsockopt net/socket.c:2441 [inline]
 __se_sys_getsockopt net/socket.c:2438 [inline]
 __x64_sys_getsockopt+0x1a5/0x250 net/socket.c:2438
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88807744c180: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
 ffff88807744c200: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807744c280: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
                                              ^
 ffff88807744c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807744c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in string_nocheck lib/vsprintf.c:653 [inline]
BUG: KASAN: slab-out-of-bounds in string+0x231/0x2b0 lib/vsprintf.c:735
Read of size 1 at addr ffff88807744c2c8 by task syz.0.16/6061

CPU: 0 UID: 0 PID: 6061 Comm: syz.0.16 Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x230 mm/kasan/report.c:480
 kasan_report+0x118/0x150 mm/kasan/report.c:593
 string_nocheck lib/vsprintf.c:653 [inline]
 string+0x231/0x2b0 lib/vsprintf.c:735
 vsnprintf+0x739/0xf00 lib/vsprintf.c:2926
 vprintk_store+0x3c7/0xd00 kernel/printk/printk.c:2279
 vprintk_emit+0x21e/0x7a0 kernel/printk/printk.c:2426
 _printk+0xcf/0x120 kernel/printk/printk.c:2475
 nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41
 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523
 __nft_match_init+0x63a/0x840 net/netfilter/nft_compat.c:520
 nf_tables_newexpr net/netfilter/nf_tables_api.c:3496 [inline]
 nf_tables_newrule+0x178f/0x2890 net/netfilter/nf_tables_api.c:4327
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:525 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:648 [inline]
 nfnetlink_rcv+0x1132/0x2520 net/netfilter/nfnetlink.c:666
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f39b1d8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffda61a05c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f39b1fb5fa0 RCX: 00007f39b1d8e929
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 00007f39b1e10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f39b1fb5fa0 R14: 00007f39b1fb5fa0 R15: 0000000000000003
 </TASK>

Allocated by task 6061:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4365 [inline]
 __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4377
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 nf_tables_newrule+0x1506/0x2890 net/netfilter/nf_tables_api.c:4309
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:525 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:648 [inline]
 nfnetlink_rcv+0x1132/0x2520 net/netfilter/nfnetlink.c:666
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88807744c280
 which belongs to the cache kmalloc-cg-96 of size 96
The buggy address is located 0 bytes to the right of
 allocated 72-byte region [ffff88807744c280, ffff88807744c2c8)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7744c
memcg:ffff888032dbfa01
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801a849640 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080200020 00000000f5000000 ffff888032dbfa01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5987, tgid 5987 (syz-executor), ts 111592816889, free_ts 111592450723
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:2487 [inline]
 allocate_slab+0x8a/0x370 mm/slub.c:2655
 new_slab mm/slub.c:2709 [inline]
 ___slab_alloc+0xbeb/0x1410 mm/slub.c:3891
 __slab_alloc mm/slub.c:3981 [inline]
 __slab_alloc_node mm/slub.c:4056 [inline]
 slab_alloc_node mm/slub.c:4217 [inline]
 __do_kmalloc_node mm/slub.c:4364 [inline]
 __kvmalloc_node_noprof+0x429/0x5f0 mm/slub.c:5052
 allocate_hook_entries_size net/netfilter/core.c:58 [inline]
 nf_hook_entries_grow+0x27c/0x710 net/netfilter/core.c:137
 __nf_register_net_hook+0x2c9/0x930 net/netfilter/core.c:432
 nf_register_net_hook+0xb2/0x190 net/netfilter/core.c:575
 nf_register_net_hooks+0x44/0x1b0 net/netfilter/core.c:591
 nf_nat_register_fn+0x3df/0x5a0 net/netfilter/nf_nat_core.c:1240
 ip6t_nat_register_lookups net/ipv6/netfilter/ip6table_nat.c:79 [inline]
 ip6table_nat_table_init+0xd4/0x2e0 net/ipv6/netfilter/ip6table_nat.c:123
 xt_find_table_lock+0x309/0x3e0 net/netfilter/x_tables.c:1260
 xt_request_find_table_lock+0x26/0x100 net/netfilter/x_tables.c:1285
 get_info net/ipv6/netfilter/ip6_tables.c:979 [inline]
 do_ip6t_get_ctl+0x730/0x1180 net/ipv6/netfilter/ip6_tables.c:1668
page last free pid 5987 tgid 5987 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2895
 vfree+0x25a/0x400 mm/vmalloc.c:3434
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:882 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
 do_ip6t_get_ctl+0xeb0/0x1180 net/ipv6/netfilter/ip6_tables.c:1677
 nf_getsockopt+0x26b/0x290 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x1ed/0x290 net/ipv6/ipv6_sockglue.c:1469
 do_sock_getsockopt+0x35d/0x650 net/socket.c:2405
 __sys_getsockopt net/socket.c:2434 [inline]
 __do_sys_getsockopt net/socket.c:2441 [inline]
 __se_sys_getsockopt net/socket.c:2438 [inline]
 __x64_sys_getsockopt+0x1a5/0x250 net/socket.c:2438
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88807744c180: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
 ffff88807744c200: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807744c280: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
                                              ^
 ffff88807744c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807744c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================