ci2 starts bisection 2024-06-05 22:41:25.104269951 +0000 UTC m=+34767.977460182 bisecting fixing commit since d68f68a9d732e0501ef84130606eb3ac6767249f building syzkaller on d367cbe5791e415abaed06819481019104eaf42a ensuring issue is reproducible on original commit d68f68a9d732e0501ef84130606eb3ac6767249f testing commit d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 00d9fe9d381b9f11af88f885557810b806f5e2f97f07c89587e77d81becf8ce0 all runs: crashed: general protection fault in step_into representative crash: general protection fault in step_into, 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 d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dca2030032213860fb1f62a64938d74bad4380dafaef39dbf7b30e45de3ac85e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, 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=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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9cdb85bbb1238200c2122498949c1d2be7129d26e73c9c3730f056ff67ca022 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fb5dc0b8b84a1ac577823b68591ed1809e0d1d06874b577067d207b63659b86 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, 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 d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 40dd1219489d032244e57214b267dcb5aae8588bebe1354af555c9963fb8c1d5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8886e72bf4851ce55469fe59783277f62bb20d68ed6c5e1893e6d8807b2d1eb all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, 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 d68f68a9d732e0501ef84130606eb3ac6767249f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d68f68a9d732e0501ef84130606eb3ac6767249f: 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD e4622d460ed869bf74116c281c7612e8d9968306 testing commit e4622d460ed869bf74116c281c7612e8d9968306 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 005b62068e104fa8e930da156ceab929df3626488f4e46d8d09a2c975c6aec3e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in step_into representative crash: BUG: unable to handle kernel NULL pointer dereference in step_into, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h15m35.472894367s (build: 30m10.576999332s, test: 42m36.652394426s) crash still not fixed or there were kernel test errors commit msg: ANDROID: GKI: Update rockchip symbols for rndis_host. crash: BUG: unable to handle kernel NULL pointer dereference in step_into BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 116711067 P4D 116711067 PUD 11670e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 350 Comm: syz-executor.0 Not tainted 6.1.78-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:traverse_mounts fs/namei.c:1430 [inline] RIP: 0010:handle_mounts fs/namei.c:1542 [inline] RIP: 0010:step_into+0x40/0x2f0 fs/namei.c:1835 Code: f6 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 45 d0 c6 45 cf 00 48 8b 07 48 89 45 b8 48 89 55 c0 44 8b 47 38 41 f6 c0 40 75 3e <41> 8b 37 f7 c6 00 00 07 00 0f 85 e8 00 00 00 f7 c6 00 00 70 00 75 RSP: 0018:ffffc900007a3c68 EFLAGS: 00010246 RAX: ffff888108d056a0 RBX: ffffc900007a3d70 RCX: 0000000000000001 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900007a3d70 RBP: ffffc900007a3cb8 R08: 0000000000000011 R09: ffffc900007a3bb0 R10: ffff888118015f00 R11: ffff888100041400 R12: 8080808080808080 R13: ffff8881009b9037 R14: 0000000000000002 R15: 0000000000000010 FS: 00007f49622c36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000116721000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: walk_component fs/namei.c:2003 [inline] link_path_walk+0x286/0x430 fs/namei.c:2324 path_lookupat+0x5f/0x100 fs/namei.c:2477 filename_lookup+0xe5/0x200 fs/namei.c:2507 user_path_at_empty+0x36/0x90 fs/namei.c:2906 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3391 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x123/0x1b0 fs/namespace.c:3579 __x64_sys_mount+0x20/0x30 fs/namespace.c:3579 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: 0033:0x7f496147dda9 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:00007f49622c30c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f49615abf80 RCX: 00007f496147dda9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000000 RBP: 00007f49614ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f49615abf80 R15: 00007ffd59915698 Modules linked in: CR2: 0000000000000010 ---[ end trace 0000000000000000 ]--- RIP: 0010:traverse_mounts fs/namei.c:1430 [inline] RIP: 0010:handle_mounts fs/namei.c:1542 [inline] RIP: 0010:step_into+0x40/0x2f0 fs/namei.c:1835 Code: f6 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 45 d0 c6 45 cf 00 48 8b 07 48 89 45 b8 48 89 55 c0 44 8b 47 38 41 f6 c0 40 75 3e <41> 8b 37 f7 c6 00 00 07 00 0f 85 e8 00 00 00 f7 c6 00 00 70 00 75 RSP: 0018:ffffc900007a3c68 EFLAGS: 00010246 RAX: ffff888108d056a0 RBX: ffffc900007a3d70 RCX: 0000000000000001 RDX: 0000000000000010 RSI: 0000000000000002 RDI: ffffc900007a3d70 RBP: ffffc900007a3cb8 R08: 0000000000000011 R09: ffffc900007a3bb0 R10: ffff888118015f00 R11: ffff888100041400 R12: 8080808080808080 R13: ffff8881009b9037 R14: 0000000000000002 R15: 0000000000000010 FS: 00007f49622c36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000116721000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: f6 48 89 fb testb $0xfb,-0x77(%rax) 4: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax b: 00 00 d: 48 89 45 d0 mov %rax,-0x30(%rbp) 11: c6 45 cf 00 movb $0x0,-0x31(%rbp) 15: 48 8b 07 mov (%rdi),%rax 18: 48 89 45 b8 mov %rax,-0x48(%rbp) 1c: 48 89 55 c0 mov %rdx,-0x40(%rbp) 20: 44 8b 47 38 mov 0x38(%rdi),%r8d 24: 41 f6 c0 40 test $0x40,%r8b 28: 75 3e jne 0x68 * 2a: 41 8b 37 mov (%r15),%esi <-- trapping instruction 2d: f7 c6 00 00 07 00 test $0x70000,%esi 33: 0f 85 e8 00 00 00 jne 0x121 39: f7 c6 00 00 70 00 test $0x700000,%esi 3f: 75 .byte 0x75