ci2 starts bisection 2023-10-30 01:23:09.179611905 +0000 UTC m=+214444.855230521 bisecting fixing commit since a27512601c2d65569fdd5a843246dc8da96b6408 building syzkaller on 0b6a67ac4b0dc26f43030c5edd01c9175f13b784 ensuring issue is reproducible on original commit a27512601c2d65569fdd5a843246dc8da96b6408 testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a67ccb1295e44f42865012c93e58528abf0863ebf3c335247de34e3262c067e4 all runs: crashed: general protection fault in do_renameat2 representative crash: general protection fault in do_renameat2, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ef7986724b9f9a03940a0b74fc6c8f918d3a8114bda48700e7abc52b1f62291 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=4789 full=6024 leaves diff=238 split chunks (needed=false): <238> split chunk #0 of len 238 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 95729e7cf5112d3ff47796f8a307b7bb38dbe884b533663145cd541fbc00d1d2 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6abfe8f729f0d51c98fe530c8f7f65211a004b71a59a859427e6aae20660f35 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 445317bc44998c0db7f4f970add87b1ba105badc58a2023bbb3584e857b2e288 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4d5b76dc57e80f42bb7bab2092bb20dae9905c3ce4a2fcc6d827cb7fd084ab6 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a27512601c2d65569fdd5a843246dc8da96b6408 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building a27512601c2d65569fdd5a843246dc8da96b6408: net/socket.c:1109: undefined reference to `wext_handle_ioctl' net/socket.c:3378: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 46 configs; suspects: [HID_ZEROPLUS USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD 974cdc3417177c55ed62880414ce48d8c75018d3 testing commit 974cdc3417177c55ed62880414ce48d8c75018d3 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ddde230cc82ea2d0f227db98160439c926043636e49d3bd6ef1820bc1565dde all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 representative crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 41m27.449269763s (build: 18m29.712452793s, test: 21m20.32402611s) crash still not fixed or there were kernel test errors commit msg: Revert "netfilter: handle the connecting collision properly in nf_conntrack_proto_sctp" crash: BUG: unable to handle kernel NULL pointer dereference in do_renameat2 BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10d7d6067 P4D 10d7d6067 PUD 10d7e2067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 345 Comm: syz-executor.0 Not tainted 5.10.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4563 Code: a8 e8 95 7b ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 d3 8a ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c5 0f 87 da 00 00 00 00 00 00 70 00 41 bd fe ff ff ff 0f 84 c0 00 00 00 8b 95 60 ff RSP: 0018:ffffc90000603e60 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff8881003a9280 RBP: ffffc90000603f10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff88810ab24c00 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: 0000000000000010 R15: ffff8881077d2000 FS: 00007ff26bfcf6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010d799000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_rename fs/namei.c:4656 [inline] __se_sys_rename fs/namei.c:4654 [inline] __x64_sys_rename+0x40/0x50 fs/namei.c:4654 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7ff26c44cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff26bfcf0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007ff26c56bf80 RCX: 00007ff26c44cae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007ff26c49847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff26c56bf80 R15: 00007ffe20fe5f68 Modules linked in: CR2: 0000000000000010 ---[ end trace b0884f2175296c44 ]--- RIP: 0010:do_renameat2+0x27f/0x4f0 fs/namei.c:4563 Code: a8 e8 95 7b ff ff 48 8b 75 98 48 8d 7d b0 89 da 49 89 c4 e8 d3 8a ff ff 48 3d 00 f0 ff ff 49 89 c6 41 89 c5 0f 87 da 00 00 00 00 00 00 70 00 41 bd fe ff ff ff 0f 84 c0 00 00 00 8b 95 60 ff RSP: 0018:ffffc90000603e60 EFLAGS: 00010203 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff8881003a9280 RBP: ffffc90000603f10 R08: 0000000000000005 R09: 0000000000000064 R10: ffff88810ab24c00 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000010 R14: 0000000000000010 R15: ffff8881077d2000 FS: 00007ff26bfcf6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000010d799000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: a8 e8 test $0xe8,%al 2: 95 xchg %eax,%ebp 3: 7b ff jnp 0x4 5: ff 48 8b decl -0x75(%rax) 8: 75 98 jne 0xffffffa2 a: 48 8d 7d b0 lea -0x50(%rbp),%rdi e: 89 da mov %ebx,%edx 10: 49 89 c4 mov %rax,%r12 13: e8 d3 8a ff ff call 0xffff8aeb 18: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 1e: 49 89 c6 mov %rax,%r14 21: 41 89 c5 mov %eax,%r13d 24: 0f 87 da 00 00 00 ja 0x104 * 2a: f7 00 00 00 70 00 testl $0x700000,(%rax) <-- trapping instruction 30: 41 bd fe ff ff ff mov $0xfffffffe,%r13d 36: 0f 84 c0 00 00 00 je 0xfc 3c: 8b .byte 0x8b 3d: 95 xchg %eax,%ebp 3e: 60 (bad) 3f: ff .byte 0xff