ci2 starts bisection 2024-05-13 01:20:56.85294265 +0000 UTC m=+149434.045267325 bisecting fixing commit since d3f73f04529a9b338fc09e256ed58248ca45ca5c building syzkaller on 77b23aa147a898d1e1912a5f01e6716bbdc3a59e ensuring issue is reproducible on original commit d3f73f04529a9b338fc09e256ed58248ca45ca5c testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17ed04dc198125b1d2f5cf4b1ade9a29117e473120e953e8ce47c60e9c6d8adc 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 d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77d7b44e53655f4e48dd68e59a8c089e63d0c181f5ba6693b645a8144f9a1d9c 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=5179 full=6492 leaves diff=255 split chunks (needed=false): <255> split chunk #0 of len 255 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f5b47f665eb39e42f203d817dd8f75b67f051e8849ae7f0657abdafb6b2db48 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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 65aef6356589ab76d0908f6fe04153ff4ca1f3fd1e15451c2b72dd952aa097c6 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2eb10a7912568aca35505560f42a35b4a367cce7858b788825c51380ed19fecd 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a5c395e10e81af3721f67dbfbbdb1086ab1482567fd4c5e1aebd93610aa82c0 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d3f73f04529a9b338fc09e256ed58248ca45ca5c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d3f73f04529a9b338fc09e256ed58248ca45ca5c: net/socket.c:1242: undefined reference to `wext_handle_ioctl' net/socket.c:3437: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 51 configs; suspects: [HID_ZEROPLUS USB_NET_DM9601 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_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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 4d55129aea65ac23a34b9053f3f1ee4d92883032 testing commit 4d55129aea65ac23a34b9053f3f1ee4d92883032 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea6a739702183c0c82a7ab058cbbd656523c424ac02deaa7f53f5615ee088cfa 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: 39m38.136656764s (build: 17m29.387810971s, test: 19m35.445322152s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: crypto: x86/curve25519 - disable gcov crash: BUG: unable to handle kernel NULL pointer dereference in filename_create BUG: kernel NULL pointer dereference, address: 000000000000000a #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 110fe3067 P4D 110fe3067 PUD 110fe8067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 357 Comm: syz-executor.0 Not tainted 6.1.75-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline] RIP: 0010:d_is_positive include/linux/dcache.h:455 [inline] RIP: 0010:filename_create+0xf1/0x1a0 fs/namei.c:3890 Code: 7d c0 44 89 f2 e8 7f d4 ff ff 49 89 c6 48 3d 00 f0 ff ff 76 05 8b 5d b4 eb 41 80 7d bb 00 0f 95 c0 41 f6 c5 02 0f 94 c1 20 c1 <41> 0f b6 56 02 f6 c2 70 0f 95 c0 08 c8 49 c7 c7 ef ff ff ff f6 c2 RSP: 0018:ffffc900007dfe58 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000ffffff9c RSI: 0000000400000000 RDI: ffff8881002fdf00 RBP: ffffc900007dfea8 R08: ffff8881127de540 R09: ffffffff81545e4c R10: ffff8881127de540 R11: ffff888100041400 R12: ffffc900007dfec0 R13: 0000000000000002 R14: 0000000000000008 R15: 00000000000000a0 FS: 00007f6b76ca36c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 0000000110fd4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_mkdirat+0xb7/0x150 fs/namei.c:4128 __do_sys_mkdirat fs/namei.c:4153 [inline] __se_sys_mkdirat fs/namei.c:4151 [inline] __x64_sys_mkdirat+0x2c/0x40 fs/namei.c:4151 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6b75e7dda9 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:00007f6b76ca30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f6b75fac050 RCX: 00007f6b75e7dda9 RDX: 0000000000000100 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007f6b75eca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6b75fac050 R15: 00007fff0b5fa268 Modules linked in: CR2: 000000000000000a ---[ end trace 0000000000000000 ]--- RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline] RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline] RIP: 0010:d_is_positive include/linux/dcache.h:455 [inline] RIP: 0010:filename_create+0xf1/0x1a0 fs/namei.c:3890 Code: 7d c0 44 89 f2 e8 7f d4 ff ff 49 89 c6 48 3d 00 f0 ff ff 76 05 8b 5d b4 eb 41 80 7d bb 00 0f 95 c0 41 f6 c5 02 0f 94 c1 20 c1 <41> 0f b6 56 02 f6 c2 70 0f 95 c0 08 c8 49 c7 c7 ef ff ff ff f6 c2 RSP: 0018:ffffc900007dfe58 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000ffffff9c RSI: 0000000400000000 RDI: ffff8881002fdf00 RBP: ffffc900007dfea8 R08: ffff8881127de540 R09: ffffffff81545e4c R10: ffff8881127de540 R11: ffff888100041400 R12: ffffc900007dfec0 R13: 0000000000000002 R14: 0000000000000008 R15: 00000000000000a0 FS: 00007f6b76ca36c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000a CR3: 0000000110fd4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 7d c0 jge 0xffffffc2 2: 44 89 f2 mov %r14d,%edx 5: e8 7f d4 ff ff call 0xffffd489 a: 49 89 c6 mov %rax,%r14 d: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 13: 76 05 jbe 0x1a 15: 8b 5d b4 mov -0x4c(%rbp),%ebx 18: eb 41 jmp 0x5b 1a: 80 7d bb 00 cmpb $0x0,-0x45(%rbp) 1e: 0f 95 c0 setne %al 21: 41 f6 c5 02 test $0x2,%r13b 25: 0f 94 c1 sete %cl 28: 20 c1 and %al,%cl * 2a: 41 0f b6 56 02 movzbl 0x2(%r14),%edx <-- trapping instruction 2f: f6 c2 70 test $0x70,%dl 32: 0f 95 c0 setne %al 35: 08 c8 or %cl,%al 37: 49 c7 c7 ef ff ff ff mov $0xffffffffffffffef,%r15 3e: f6 .byte 0xf6 3f: c2 .byte 0xc2