ci2 starts bisection 2025-01-28 20:51:13.849633473 +0000 UTC m=+30688.840718799 bisecting fixing commit since 8790a94475c92d0969f6ff47b55fd15c4919ccaa building syzkaller on bcd9b39fec6079d0458646b5a7c4fb7e5421c49e ensuring issue is reproducible on original commit 8790a94475c92d0969f6ff47b55fd15c4919ccaa testing commit 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d464bad5978012b4a1bbaf9c9032c1c51e8ca50b345c94068b22acd56b2c703a all runs: crashed: general protection fault in security_inode_getattr representative crash: general protection fault in security_inode_getattr, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9330b0464a2823f92ba27cc4f01e7b28e5e9233ceaa6e4d0697a36b303510ebc all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7128896e9717cabcc657d17f9934be571a3d097e2a60fc62839c34b62da7e82d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, 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 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b651e20646268665a2417b44984f6223c6ff5226282ce9368da2535ac2c630b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, 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 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 272b652aab9430e1b38b4779176a88da7fe54bf0400fab2f0ba0f790b1c6daf8 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23f999c555072012162384bd6269cbf974d764db0cbbe29678eeb1e20d4bab1d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, 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 8790a94475c92d0969f6ff47b55fd15c4919ccaa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 8790a94475c92d0969f6ff47b55fd15c4919ccaa: 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 1ffc24e7e898c079146973a6fa6015f0ea82beff testing commit 1ffc24e7e898c079146973a6fa6015f0ea82beff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7acc9e6c1ed68d0899fc19002e306d5b6be755e91fbf6e54198967b110e6e29e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 43m12.339978856s (build: 19m32.790772603s, test: 20m52.343450365s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: Revert "PCI: Use preserve_config in place of pci_flags" crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr BUG: kernel NULL pointer dereference, address: 0000000000000030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1115c2067 P4D 1115c2067 PUD 1115c6067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 357 Comm: syz-executor.0 Not tainted 6.1.124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline] RIP: 0010:security_inode_getattr+0xd/0x50 security/security.c:1359 Code: ff 53 18 85 c0 74 eb 41 89 c6 44 89 f0 5b 41 5c 41 5e 41 5f 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 53 48 8b 47 08 <48> 8b 40 30 45 31 f6 f6 40 0d 02 75 1f 49 89 ff 48 c7 c3 28 0a d6 RSP: 0018:ffffc9000073b7e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000073b8d0 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc9000073b8e0 RDI: ffffc9000073b8d0 RBP: ffffc9000073b800 R08: 0000000000040006 R09: ffffc9000073b8d0 R10: 0000000000000000 R11: ffff88810b998120 R12: ffffc9000073b8e0 R13: 00000000ffffffe6 R14: 0000000000000000 R15: 00000000000007ff FS: 00007ff4fbc1b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 00000001115b5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_getattr+0x1e/0xc0 fs/stat.c:158 ovl_copy_up_one fs/overlayfs/copy_up.c:974 [inline] ovl_copy_up_flags+0x1be/0x13c0 fs/overlayfs/copy_up.c:1060 ovl_maybe_copy_up+0x89/0xa0 fs/overlayfs/copy_up.c:1092 ovl_open+0x43/0xb0 fs/overlayfs/file.c:155 do_dentry_open+0x253/0x3d0 fs/open.c:884 vfs_open fs/open.c:1015 [inline] dentry_open+0x46/0x70 fs/open.c:1031 file_open+0xc4/0x220 fs/incfs/vfs.c:1501 do_dentry_open+0x253/0x3d0 fs/open.c:884 vfs_open+0x28/0x30 fs/open.c:1015 do_open fs/namei.c:3625 [inline] path_openat+0x9e0/0xb60 fs/namei.c:3782 do_filp_open+0xad/0x150 fs/namei.c:3809 do_sys_openat2+0x83/0x250 fs/open.c:1341 do_sys_open fs/open.c:1357 [inline] __do_sys_openat fs/open.c:1373 [inline] __se_sys_openat fs/open.c:1368 [inline] __x64_sys_openat+0x79/0xa0 fs/open.c:1368 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff4fae7dda9 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:00007ff4fbc1b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff4fafabf80 RCX: 00007ff4fae7dda9 RDX: 0000000000000002 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007ff4faeca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff4fafabf80 R15: 00007fff51d65318 Modules linked in: CR2: 0000000000000030 ---[ end trace 0000000000000000 ]--- RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline] RIP: 0010:security_inode_getattr+0xd/0x50 security/security.c:1359 Code: ff 53 18 85 c0 74 eb 41 89 c6 44 89 f0 5b 41 5c 41 5e 41 5f 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 53 48 8b 47 08 <48> 8b 40 30 45 31 f6 f6 40 0d 02 75 1f 49 89 ff 48 c7 c3 28 0a d6 RSP: 0018:ffffc9000073b7e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000073b8d0 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc9000073b8e0 RDI: ffffc9000073b8d0 RBP: ffffc9000073b800 R08: 0000000000040006 R09: ffffc9000073b8d0 R10: 0000000000000000 R11: ffff88810b998120 R12: ffffc9000073b8e0 R13: 00000000ffffffe6 R14: 0000000000000000 R15: 00000000000007ff FS: 00007ff4fbc1b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 00000001115b5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ff 53 18 call *0x18(%rbx) 3: 85 c0 test %eax,%eax 5: 74 eb je 0xfffffff2 7: 41 89 c6 mov %eax,%r14d a: 44 89 f0 mov %r14d,%eax d: 5b pop %rbx e: 41 5c pop %r12 10: 41 5e pop %r14 12: 41 5f pop %r15 14: 5d pop %rbp 15: c3 ret 16: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 1d: 55 push %rbp 1e: 48 89 e5 mov %rsp,%rbp 21: 41 57 push %r15 23: 41 56 push %r14 25: 53 push %rbx 26: 48 8b 47 08 mov 0x8(%rdi),%rax * 2a: 48 8b 40 30 mov 0x30(%rax),%rax <-- trapping instruction 2e: 45 31 f6 xor %r14d,%r14d 31: f6 40 0d 02 testb $0x2,0xd(%rax) 35: 75 1f jne 0x56 37: 49 89 ff mov %rdi,%r15 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: c3 ret 3d: 28 0a sub %cl,(%rdx) 3f: d6 (bad)