ci2 starts bisection 2024-07-30 20:09:21.613869617 +0000 UTC m=+16226.119285169 bisecting fixing commit since 3802b45594e1e000cdf46d1ae48b07783a276418 building syzkaller on e66542d78f1cf0c783877440cd239a11fb73fb15 ensuring issue is reproducible on original commit 3802b45594e1e000cdf46d1ae48b07783a276418 testing commit 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a0d069aace646b4bca3ec3820b80187160f6f18bddcee89f0d5a68d8503a5fa all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, 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 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4726be9f6c4742184a45fc1e2ff63d9a94b453fe3c25f255e84c8d3ad5056c89 all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, 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=241 split chunks (needed=false): <241> split chunk #0 of len 241 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 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5f1bb6cdfcc24dc9cde647d40ad3a3c4bfe543fe08026cd828d4ae418768c3ba all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d307a8d8f70d9adf611dc51661768800c84a656f7e825cb8d09852d1033e849 all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, 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 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d6092a97dacc7f002a013f85ee77973afd96dd37d182629be50814feb0b55a5e all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79f16ff67af35fca04ff0e6cec4e2962673232312002c01eaeceeac584e665f7 all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 3802b45594e1e000cdf46d1ae48b07783a276418 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 3802b45594e1e000cdf46d1ae48b07783a276418: 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 45 configs; suspects: [HID_ZEROPLUS 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 d0a6506ecafdf68213f4bf0c7c2069301a34a510 testing commit d0a6506ecafdf68213f4bf0c7c2069301a34a510 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e95b730328ae7269ad13d66f3f8e508a96564bb72945700af5b87ad74cac76c all runs: crashed: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str representative crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 34m59.847216635s (build: 13m22.102771993s, test: 19m45.093339003s) crash still not fixed or there were kernel test errors commit msg: Merge cad6da86ca98 ("ALSA: usb-audio: Sort quirk table entries") into android13-5.15-lts crash: BUG: unable to handle kernel paging request in bpf_probe_read_kernel_str BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0001) - permissions violation PGD 2e0e067 P4D 2e0e067 PUD 2e10067 PMD 2e12067 PTE 8000000002e05165 Oops: 0001 [#1] PREEMPT SMP CPU: 0 PID: 94 Comm: udevd Not tainted 5.15.151-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:strncpy_from_kernel_nofault+0x5a/0xb0 mm/maccess.c:92 Code: ae 01 00 83 80 48 0b 00 00 01 31 f6 4c 89 e2 eb 17 48 83 c2 01 48 83 c3 01 48 89 d0 4c 29 e0 84 c9 74 30 4c 39 e8 7d 2b 89 f0 <8a> 0a 85 c0 88 0b 74 df 65 48 8b 04 25 00 ae 01 00 83 a8 48 0b 00 RSP: 0018:ffffc9000035bcb8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000035bd08 RCX: 0000000000000010 RDX: ffffffffff600000 RSI: 0000000000000000 RDI: ffffffffff600000 RBP: ffffc9000035bcd0 R08: ffffffffff600000 R09: ffff888101bfab68 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffff600000 R13: 0000000000000005 R14: ffff888101b97300 R15: 00007ffc7df47388 FS: 00007f50894f9c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 0000000101ba4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_probe_read_kernel_str_common kernel/trace/bpf_trace.c:255 [inline] ____bpf_probe_read_kernel_str kernel/trace/bpf_trace.c:264 [inline] bpf_probe_read_kernel_str+0x1d/0x50 kernel/trace/bpf_trace.c:261 bpf_prog_ef3a4661c9d1378e+0x42/0x438 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x37/0x90 kernel/trace/bpf_trace.c:1917 __bpf_trace_kfree+0x9/0x10 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1ff/0x2a0 mm/slub.c:4569 inotify_free_event+0x9/0x10 fs/notify/inotify/inotify_fsnotify.c:189 fsnotify_destroy_event fs/notify/notification.c:67 [inline] fsnotify_destroy_event+0x46/0x50 fs/notify/notification.c:50 inotify_read+0x1c0/0x360 fs/notify/inotify/inotify_user.c:252 vfs_read+0x9c/0x1a0 fs/read_write.c:483 ksys_read+0x62/0xe0 fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __x64_sys_read+0x15/0x20 fs/read_write.c:631 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: 0033:0x7f5089624b6a Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffc7df47198 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000055f107c58040 RCX: 00007f5089624b6a RDX: 0000000000000110 RSI: 00007ffc7df47378 RDI: 0000000000000007 RBP: 00000000000000d9 R08: 0000000002f6dbcf R09: 00007ffc7df5b080 R10: 00007ffc7df5b090 R11: 0000000000000246 R12: 00007ffc7df47378 R13: 000055f109b45770 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: ffffffffff600000 ---[ end trace 72b0e8a29bb7a2a5 ]--- RIP: 0010:strncpy_from_kernel_nofault+0x5a/0xb0 mm/maccess.c:92 Code: ae 01 00 83 80 48 0b 00 00 01 31 f6 4c 89 e2 eb 17 48 83 c2 01 48 83 c3 01 48 89 d0 4c 29 e0 84 c9 74 30 4c 39 e8 7d 2b 89 f0 <8a> 0a 85 c0 88 0b 74 df 65 48 8b 04 25 00 ae 01 00 83 a8 48 0b 00 RSP: 0018:ffffc9000035bcb8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000035bd08 RCX: 0000000000000010 RDX: ffffffffff600000 RSI: 0000000000000000 RDI: ffffffffff600000 RBP: ffffc9000035bcd0 R08: ffffffffff600000 R09: ffff888101bfab68 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffff600000 R13: 0000000000000005 R14: ffff888101b97300 R15: 00007ffc7df47388 FS: 00007f50894f9c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 0000000101ba4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ae scas %es:(%rdi),%al 1: 01 00 add %eax,(%rax) 3: 83 80 48 0b 00 00 01 addl $0x1,0xb48(%rax) a: 31 f6 xor %esi,%esi c: 4c 89 e2 mov %r12,%rdx f: eb 17 jmp 0x28 11: 48 83 c2 01 add $0x1,%rdx 15: 48 83 c3 01 add $0x1,%rbx 19: 48 89 d0 mov %rdx,%rax 1c: 4c 29 e0 sub %r12,%rax 1f: 84 c9 test %cl,%cl 21: 74 30 je 0x53 23: 4c 39 e8 cmp %r13,%rax 26: 7d 2b jge 0x53 28: 89 f0 mov %esi,%eax * 2a: 8a 0a mov (%rdx),%cl <-- trapping instruction 2c: 85 c0 test %eax,%eax 2e: 88 0b mov %cl,(%rbx) 30: 74 df je 0x11 32: 65 48 8b 04 25 00 ae mov %gs:0x1ae00,%rax 39: 01 00 3b: 83 .byte 0x83 3c: a8 48 test $0x48,%al 3e: 0b 00 or (%rax),%eax