ci2 starts bisection 2024-05-21 16:58:50.98564847 +0000 UTC m=+35978.527220080 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on 352ab9047be19ed1d8367b9113b7bde280c90124 ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a44030fbb619c53cb5ad1957b3f50582049f1ba47634abf686f156577d88a337 all runs: crashed: general protection fault in path_openat representative crash: general protection fault in path_openat, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c4c42827ff0b4fdc1abe0dcf569f9e483a790a4d10b6a3e31c828da0f886c3c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4920 full=6159 leaves diff=242 split chunks (needed=false): <242> split chunk #0 of len 242 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 120c8b983f652c71314494bef300a73382d327422b399e732523ecf3fb50c037 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cba18f2b08bfa55591a2872aea51fb18739f5d8c1ce656eef17c64e1370fd241 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7ccc96eba875f972b8a528d04932826d9c12f781562e216551e5d9ca2907b939 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: da4a1eb5ffc3b1ae36fb3a424c915b803a00c21523d547355591875354e132fd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 5d96939590c0122be2138255c921e57e3f78b7bd testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 310a2a8711066a44d5528709c6d62dfee5f49f80f9363681ba8135802ab762b0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in path_openat representative crash: BUG: unable to handle kernel NULL pointer dereference in path_openat, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 57m43.942969223s (build: 24m28.245821665s, test: 31m31.080435326s) crash still not fixed or there were kernel test errors commit msg: Revert "hrtimer: Report offline hrtimer enqueue" crash: BUG: unable to handle kernel NULL pointer dereference in path_openat BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10effc067 P4D 10effc067 PUD 10eff8067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 353 Comm: syz-executor.0 Not tainted 5.15.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:atomic_open fs/namei.c:3341 [inline] RIP: 0010:lookup_open fs/namei.c:3433 [inline] RIP: 0010:open_last_lookups fs/namei.c:3532 [inline] RIP: 0010:path_openat+0xd96/0x1230 fs/namei.c:3739 Code: e4 0f 95 c2 48 83 f8 ff 0f 84 cd 03 00 00 48 85 c0 74 17 4c 89 f7 88 55 88 e8 36 c3 00 00 48 8b 45 98 0f b6 55 88 4c 8b 70 18 <41> f7 06 00 00 70 00 0f 84 13 01 00 00 49 83 fe fe 0f 94 c0 21 c2 RSP: 0018:ffffc900003fbcc8 EFLAGS: 00010246 RAX: ffff888100feb140 RBX: ffff88810ae290d0 RCX: 0000000500000000 RDX: 0000000000000000 RSI: 0000000400000000 RDI: ffff8881025eb780 RBP: ffffc900003fbd70 R08: 0000000000000005 R09: 0000000000000064 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffc900003fbd80 R14: 0000000000000008 R15: ffffc900003fbebc FS: 00007f03e552a6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000010f06b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_filp_open+0xb1/0x150 fs/namei.c:3769 do_sys_openat2+0x9c/0x250 fs/open.c:1234 do_sys_open fs/open.c:1250 [inline] __do_sys_openat fs/open.c:1266 [inline] __se_sys_openat fs/open.c:1261 [inline] __x64_sys_openat+0x51/0x90 fs/open.c:1261 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f03e59c9da9 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:00007f03e552a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f03e5af8050 RCX: 00007f03e59c9da9 RDX: 0000000000020200 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f03e5a1647a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f03e5af8050 R15: 00007ffd4bdd0c28 Modules linked in: CR2: 0000000000000008 ---[ end trace 9dec5033ab56a8d4 ]--- RIP: 0010:atomic_open fs/namei.c:3341 [inline] RIP: 0010:lookup_open fs/namei.c:3433 [inline] RIP: 0010:open_last_lookups fs/namei.c:3532 [inline] RIP: 0010:path_openat+0xd96/0x1230 fs/namei.c:3739 Code: e4 0f 95 c2 48 83 f8 ff 0f 84 cd 03 00 00 48 85 c0 74 17 4c 89 f7 88 55 88 e8 36 c3 00 00 48 8b 45 98 0f b6 55 88 4c 8b 70 18 <41> f7 06 00 00 70 00 0f 84 13 01 00 00 49 83 fe fe 0f 94 c0 21 c2 RSP: 0018:ffffc900003fbcc8 EFLAGS: 00010246 RAX: ffff888100feb140 RBX: ffff88810ae290d0 RCX: 0000000500000000 RDX: 0000000000000000 RSI: 0000000400000000 RDI: ffff8881025eb780 RBP: ffffc900003fbd70 R08: 0000000000000005 R09: 0000000000000064 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffc900003fbd80 R14: 0000000000000008 R15: ffffc900003fbebc FS: 00007f03e552a6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000010f06b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e4 0f in $0xf,%al 2: 95 xchg %eax,%ebp 3: c2 48 83 ret $0x8348 6: f8 clc 7: ff 0f decl (%rdi) 9: 84 cd test %cl,%ch b: 03 00 add (%rax),%eax d: 00 48 85 add %cl,-0x7b(%rax) 10: c0 74 17 4c 89 shlb $0x89,0x4c(%rdi,%rdx,1) 15: f7 88 55 88 e8 36 c3 testl $0x480000c3,0x36e88855(%rax) 1c: 00 00 48 1f: 8b 45 98 mov -0x68(%rbp),%eax 22: 0f b6 55 88 movzbl -0x78(%rbp),%edx 26: 4c 8b 70 18 mov 0x18(%rax),%r14 * 2a: 41 f7 06 00 00 70 00 testl $0x700000,(%r14) <-- trapping instruction 31: 0f 84 13 01 00 00 je 0x14a 37: 49 83 fe fe cmp $0xfffffffffffffffe,%r14 3b: 0f 94 c0 sete %al 3e: 21 c2 and %eax,%edx