ci2 starts bisection 2023-11-22 09:01:22.862592662 +0000 UTC m=+744349.970623405 bisecting fixing commit since a27512601c2d65569fdd5a843246dc8da96b6408 building syzkaller on 65faba36470e75a1339e6f79c8631c9578786b7b 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: f1a2e82e119630aeb77f5fa9f52a8692f59905e54ba0090ab6d8a42c8da12f8c all runs: crashed: general protection fault in filename_create representative crash: general protection fault in filename_create, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], 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: fcad1f668717b7ae9563dce7d54e0f5193a360d1d12947bad6691b4d8fe3381e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], 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: 10367c0143639700e1f89d3a364877136bd84a6943f1863c55675aaaea64cdfd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], 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: 72184fe0a5efe139a8daa47eca877b908cc5d7307553490cadfdaf35549468b5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], 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: fa6936000efdb95f01ba43e52b4e97132937a74ca3ca4a40c23f04850ee18dd1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, 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: d09ecc8fc6375f15f76c77a863f7591a9e001c2eee4367a7ffb22128f693d805 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 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 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD d30b996835c08018a70dd52c588ba15de1c8378b testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 98842782efb16b6a9e8a8e61bb683d928e9b8113bf3416b1b3fc5198db6ff9b3 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in filename_create representative crash: BUG: unable to handle kernel NULL pointer dereference in filename_create, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 35m3.620847701s (build: 13m6.927864651s, test: 20m4.252056138s) crash still not fixed or there were kernel test errors commit msg: Merge branch 'android13-5.10' into branch `android13-5.10-lts` crash: BUG: unable to handle kernel NULL pointer dereference in filename_create BUG: kernel NULL pointer dereference, address: 0000000000000018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1096bf067 P4D 1096bf067 PUD 10fd83067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 348 Comm: syz-executor.0 Not tainted 5.10.199-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:filename_create+0x97/0x160 fs/namei.c:3619 Code: 48 81 c7 a0 00 00 00 e8 57 da a1 00 48 8b 73 08 48 8d 7d c0 44 89 e2 80 ce 06 e8 e4 a7 ff ff 48 3d 00 f0 ff ff 49 89 c4 77 59 00 00 00 70 00 75 3f 41 83 e6 02 0f 84 8b 00 00 00 45 85 ff 4d RSP: 0018:ffffc9000056fe78 EFLAGS: 00010207 RAX: 0000000000000018 RBX: ffffc9000056fee0 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff8881003e4a00 RBP: ffffc9000056fec0 R08: 0000000000000005 R09: 0000000000000064 R10: ffff8881094ffb60 R11: 0000000000000000 R12: 0000000000000018 R13: ffff888107f88000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f46e6ead6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000010d314000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: user_path_create fs/namei.c:3671 [inline] do_mknodat+0xd2/0x240 fs/namei.c:3735 __do_sys_mknodat fs/namei.c:3769 [inline] __se_sys_mknodat fs/namei.c:3766 [inline] __x64_sys_mknodat+0x19/0x20 fs/namei.c:3766 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f46e732aae9 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:00007f46e6ead0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103 RAX: ffffffffffffffda RBX: 00007f46e7449f80 RCX: 00007f46e732aae9 RDX: 0000000000000080 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f46e737647a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000700 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f46e7449f80 R15: 00007ffc217b0998 Modules linked in: CR2: 0000000000000018 ---[ end trace 6d44bde97852f7dd ]--- RIP: 0010:filename_create+0x97/0x160 fs/namei.c:3619 Code: 48 81 c7 a0 00 00 00 e8 57 da a1 00 48 8b 73 08 48 8d 7d c0 44 89 e2 80 ce 06 e8 e4 a7 ff ff 48 3d 00 f0 ff ff 49 89 c4 77 59 00 00 00 70 00 75 3f 41 83 e6 02 0f 84 8b 00 00 00 45 85 ff 4d RSP: 0018:ffffc9000056fe78 EFLAGS: 00010207 RAX: 0000000000000018 RBX: ffffc9000056fee0 RCX: 0000000500000000 RDX: 0000000000000004 RSI: 0000000400000000 RDI: ffff8881003e4a00 RBP: ffffc9000056fec0 R08: 0000000000000005 R09: 0000000000000064 R10: ffff8881094ffb60 R11: 0000000000000000 R12: 0000000000000018 R13: ffff888107f88000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f46e6ead6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000010d314000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 81 c7 a0 00 00 00 add $0xa0,%rdi 7: e8 57 da a1 00 call 0xa1da63 c: 48 8b 73 08 mov 0x8(%rbx),%rsi 10: 48 8d 7d c0 lea -0x40(%rbp),%rdi 14: 44 89 e2 mov %r12d,%edx 17: 80 ce 06 or $0x6,%dh 1a: e8 e4 a7 ff ff call 0xffffa803 1f: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 25: 49 89 c4 mov %rax,%r12 28: 77 59 ja 0x83 * 2a: f7 00 00 00 70 00 testl $0x700000,(%rax) <-- trapping instruction 30: 75 3f jne 0x71 32: 41 83 e6 02 and $0x2,%r14d 36: 0f 84 8b 00 00 00 je 0xc7 3c: 45 85 ff test %r15d,%r15d 3f: 4d rex.WRB