syzkaller login: [ 255.869876][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 255.922645][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 255.968181][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 265.302676][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:29436' (ECDSA) to the list of known hosts. 1970/01/01 00:05:33 fuzzer started 1970/01/01 00:05:50 dialing manager at localhost:45661 [ 356.106511][ T2025] cgroup: Unknown subsys name 'net' [ 357.203825][ T2025] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:05:56 syscalls: 2918 1970/01/01 00:05:56 code coverage: enabled 1970/01/01 00:05:56 comparison tracing: ioctl(KCOV_DISABLE) failed: invalid argument 1970/01/01 00:05:56 extra coverage: enabled 1970/01/01 00:05:56 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:05:57 setuid sandbox: enabled 1970/01/01 00:05:57 namespace sandbox: enabled 1970/01/01 00:05:57 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:05:57 fault injection: enabled 1970/01/01 00:05:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:05:57 net packet injection: enabled 1970/01/01 00:05:57 net device setup: enabled 1970/01/01 00:05:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:05:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:05:57 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:05:57 USB emulation: enabled 1970/01/01 00:05:57 hci packet injection: /dev/vhci does not exist 1970/01/01 00:05:57 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:05:57 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:05:57 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:06:01 fetching corpus: 49, signal 31269/34699 (executing program) 1970/01/01 00:06:04 fetching corpus: 99, signal 46156/50891 (executing program) 1970/01/01 00:06:09 fetching corpus: 149, signal 57597/63456 (executing program) 1970/01/01 00:06:11 fetching corpus: 199, signal 64054/71084 (executing program) 1970/01/01 00:06:13 fetching corpus: 249, signal 68553/76719 (executing program) 1970/01/01 00:06:17 fetching corpus: 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signal 210582/214804 (executing program) 1970/01/01 00:11:19 fetching corpus: 6284, signal 211090/214806 (executing program) 1970/01/01 00:11:21 fetching corpus: 6334, signal 211556/214808 (executing program) 1970/01/01 00:11:24 fetching corpus: 6384, signal 212112/214810 (executing program) 1970/01/01 00:11:27 fetching corpus: 6434, signal 212862/214810 (executing program) 1970/01/01 00:11:30 fetching corpus: 6471, signal 213192/214810 (executing program) 1970/01/01 00:11:30 fetching corpus: 6471, signal 213192/214821 (executing program) 1970/01/01 00:11:30 fetching corpus: 6471, signal 213192/214821 (executing program) 1970/01/01 00:13:16 starting 2 fuzzer processes 00:13:16 executing program 0: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000001b00)={&(0x7f0000000a00)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x2, [@typedef={0x0, 0x0, 0x0, 0x8, 0xa000000}]}}, &(0x7f0000000b00)=""/4096, 0x26, 0x1000, 0x1}, 0x20) 00:13:16 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000400), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_CHANNELS_SET(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)={0x44, r1, 0x1, 0x0, 0x0, {}, [@ETHTOOL_A_CHANNELS_TX_COUNT={0x8, 0x7, 0xffff7fff}, @ETHTOOL_A_CHANNELS_HEADER={0x18, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'veth1_to_bond\x00'}]}, @ETHTOOL_A_CHANNELS_RX_COUNT={0x8}, @ETHTOOL_A_CHANNELS_COMBINED_COUNT={0x8}]}, 0x44}}, 0x0) [ 823.541863][ T2046] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 823.667698][ T2046] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 827.022035][ T2047] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 827.148097][ T2047] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 837.383831][ T2046] device hsr_slave_0 entered promiscuous mode [ 837.453433][ T2046] device hsr_slave_1 entered promiscuous mode [ 838.049765][ T2047] device hsr_slave_0 entered promiscuous mode [ 838.082973][ T2047] device hsr_slave_1 entered promiscuous mode [ 838.113064][ T2047] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 838.124153][ T2047] Cannot create hsr debugfs directory [ 842.919933][ T2045] ================================================================== [ 842.922461][ T2045] BUG: KASAN: stack-out-of-bounds in sock_write_iter+0x1d0/0x272 [ 842.923619][ T2045] Write of size 40 at addr ffffaf800c48bc70 by task syz-fuzzer/2045 [ 842.925345][ T2045] [ 842.927229][ T2045] CPU: 1 PID: 2045 Comm: syz-fuzzer Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 842.928558][ T2045] Hardware name: riscv-virtio,qemu (DT) [ 842.929555][ T2045] Call Trace: [ 842.930343][ T2045] [] dump_backtrace+0x2e/0x3c [ 842.931396][ T2045] [] show_stack+0x34/0x40 [ 842.932350][ T2045] [] dump_stack_lvl+0xe4/0x150 [ 842.933433][ T2045] [] print_address_description.constprop.0+0x2a/0x330 [ 842.935468][ T2045] [] kasan_report+0x184/0x1e0 [ 842.937471][ T2045] [] kasan_check_range+0x2a/0x136 [ 842.938456][ T2045] [] __asan_storeN+0x10/0x18 [ 842.939458][ T2045] [] sock_write_iter+0x1d0/0x272 [ 842.940710][ T2045] [ 842.941321][ T2045] The buggy address belongs to the page: [ 842.942508][ T2045] page:ffffaf807a9bd718 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8c68b [ 842.943782][ T2045] flags: 0x8800000000(section=17|node=0|zone=0) [ 842.946476][ T2045] raw: 0000008800000000 0000000000000000 ffffaf807a9bd720 0000000000000000 [ 842.947621][ T2045] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 842.948539][ T2045] raw: 00000000000007ff [ 842.949285][ T2045] page dumped because: kasan: bad access detected [ 842.950260][ T2045] page_owner tracks the page as allocated [ 842.950997][ T2045] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), pid 2018, ts 798570984100, free_ts 652408134600 [ 842.952793][ T2045] __set_page_owner+0x48/0x136 [ 842.953730][ T2045] post_alloc_hook+0xd0/0x10a [ 842.955014][ T2045] get_page_from_freelist+0x8da/0x12d8 [ 842.956573][ T2045] __alloc_pages+0x150/0x3b6 [ 842.957550][ T2045] copy_process+0x482/0x3c34 [ 842.958454][ T2045] kernel_clone+0xee/0x920 [ 842.959333][ T2045] __do_sys_clone+0xf2/0x12e [ 842.960285][ T2045] sys_clone+0x32/0x44 [ 842.961311][ T2045] ret_from_syscall+0x0/0x2 [ 842.962220][ T2045] page last free stack trace: [ 842.962882][ T2045] __reset_page_owner+0x4a/0xea [ 842.963770][ T2045] free_pcp_prepare+0x29c/0x45e [ 842.965087][ T2045] free_unref_page+0x6a/0x31e [ 842.966404][ T2045] free_compound_page+0x70/0x8a [ 842.967446][ T2045] __put_compound_page+0x7c/0xb0 [ 842.968345][ T2045] __put_page+0x48/0x100 [ 842.969245][ T2045] skb_release_data+0x2f8/0x3c4 [ 842.970163][ T2045] __kfree_skb+0x38/0x50 [ 842.970971][ T2045] tcp_recvmsg+0x1f2/0x414 [ 842.971847][ T2045] inet_recvmsg+0x10a/0x4ba [ 842.973126][ T2045] sock_read_iter+0x26c/0x2ba [ 842.974084][ T2045] new_sync_read+0x3ae/0x3d8 [ 842.975407][ T2045] vfs_read+0x2ce/0x324 [ 842.976361][ T2045] ksys_read+0x1c4/0x224 [ 842.977375][ T2045] sys_read+0x28/0x36 [ 842.978255][ T2045] ret_from_syscall+0x0/0x2 [ 842.979637][ T2045] KASAN internal error: frame info validation failed; invalid marker: 18446655563249421272 [ 842.980742][ T2045] [ 842.981516][ T2045] Memory state around the buggy address: [ 842.982575][ T2045] ffffaf800c48bb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 842.983568][ T2045] ffffaf800c48bc00: 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 00 00 [ 842.985166][ T2045] >ffffaf800c48bc80: 00 f2 f2 f2 f2 f2 00 00 00 00 00 00 f3 f3 f3 f3 [ 842.986855][ T2045] ^ [ 842.987703][ T2045] ffffaf800c48bd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 842.988666][ T2045] ffffaf800c48bd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 842.989659][ T2045] ================================================================== [ 842.990600][ T2045] Disabling lock debugging due to kernel taint [ 842.993955][ T2045] Unable to handle kernel paging request at virtual address 8dfb0bf20049bb00 [ 842.996223][ T2045] Oops [#1] [ 842.996873][ T2045] Modules linked in: [ 842.997724][ T2045] CPU: 1 PID: 2045 Comm: syz-fuzzer Tainted: G B 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 842.998745][ T2045] Hardware name: riscv-virtio,qemu (DT) [ 842.999343][ T2045] epc : 0x8dfb0bf20049bb00 [ 843.000203][ T2045] ra : 0x8dfb0bf20049bb00 [ 843.000856][ T2045] epc : 8dfb0bf20049bb00 ra : 8dfb0bf20049bb00 sp : ffffaf800c48bc00 [ 843.001641][ T2045] gp : ffffffff85863ac0 tp : ffffaf8007460000 t0 : ffffffff86bcb657 [ 843.002440][ T2045] t1 : fffff5ef0b53c90c t2 : 0000000000000000 s0 : ffffaf800c48bd80 [ 843.003241][ T2045] s1 : ffffaf800c48bd20 a0 : 0000000000000004 a1 : 00000000000f0000 [ 843.004047][ T2045] a2 : 0000000000000002 a3 : ffffffff826d2872 a4 : 8dfb0bf20049bb00 [ 843.005823][ T2045] a5 : 8dfb0bf20049bb00 a6 : 0000000000f00000 a7 : ffffaf805a9e4863 [ 843.006736][ T2045] s2 : ffffffff8403fc00 s3 : ffffaf800c48bc60 s4 : 1ffff5f001891784 [ 843.007616][ T2045] s5 : 0000000000000000 s6 : ffffffff85889780 s7 : 0000000000000000 [ 843.008407][ T2045] s8 : 0000000000000004 s9 : 0000000000000000 s10: 0000000000001000 [ 843.009200][ T2045] s11: 000000c0000001a0 t3 : 0000000061736944 t4 : fffff5ef0b53c90c [ 843.009984][ T2045] t5 : fffff5ef0b53c90d t6 : ffffaf800c48b4f8 [ 843.010685][ T2045] status: 0000000000000120 badaddr: 8dfb0bf20049bb00 cause: 000000000000000c [ 843.029368][ T2045] ---[ end trace 0000000000000000 ]--- [ 843.031007][ T2045] Kernel panic - not syncing: Fatal exception [ 843.031752][ T2045] SMP: stopping secondary CPUs [ 843.033096][ T2045] Rebooting in 86400 seconds.. VM DIAGNOSIS: 18:55:44 Registers: info registers vcpu 0 pc ffffffff82337502 mhartid 0000000000000000 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff802010c8 sepc ffffffff8010b26a mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff823374fe x2/sp ffffaf800c48e440 x3/gp ffffffff85863ac0 x4/tp ffffaf800d770000 x5/t0 0000000000046000 x6/t1 8dfb0bf20049bb00 x7/t2 ffffffff8276a91a x8/s0 ffffaf800c48e450 x9/s1 ffffffff86c0f060 x10/a0 00000001fb66248a x11/a1 00000000000f0000 x12/a2 0000000000010001 x13/a3 ffffffff823374fe x14/a4 ffffaf800d770000 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffff80172506 x18/s2 0000000000000000 x19/s3 0000000000000000 x20/s4 ffffffff8545ae40 x21/s5 ffffffff8588dca0 x22/s6 0000000000989680 x23/s7 ffffffff8588df60 x24/s8 ffffaf800c48e520 x25/s9 ffffaf805a9cbd50 x26/s10 ffffaf805a9cb400 x27/s11 ffffffff8018e412 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f001891c34 x31/t6 ffffaf800c4ede2e f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 pc ffffffff80474724 mhartid 0000000000000001 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80c38f0e sepc ffffffff800bdb3e mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80474724 x2/sp ffffaf800c48b9f0 x3/gp ffffffff85863ac0 x4/tp ffffaf8007460000 x5/t0 ffffffff86bcb657 x6/t1 fffff5ef0b53c90c x7/t2 0000000000000000 x8/s0 ffffaf800c48ba00 x9/s1 ffffaf800c48bc70 x10/a0 000000008c68bc70 x11/a1 00000000000f0000 x12/a2 0000000000000002 x13/a3 ffffffff80014bc6 x14/a4 ffffaf8007461000 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffaf805a9e4863 x18/s2 ffffaf800c48bc70 x19/s3 ffffffff826d2842 x20/s4 0000000000000001 x21/s5 ffffffff85863560 x22/s6 ffffffff85889780 x23/s7 ffffaf800abdf200 x24/s8 0000000000000000 x25/s9 0000000000000000 x26/s10 0000000000001000 x27/s11 000000c0000001a0 x28/t3 fffffffff3f3f300 x29/t4 fffff5ef0b53c90c x30/t5 fffff5ef0b53c90d x31/t6 ffffaf800c48b538 f0/ft0 3f84340ad0fa1938 f1/ft1 3f847ae147ae147b f2/ft2 41a8486ec4ed0eb1 f3/ft3 413f820400000000 f4/ft4 3ffe000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000