ci2 starts bisection 2026-02-20 15:23:45.434492339 +0000 UTC m=+33273.210623074 bisecting fixing commit since 094fc3778d6b9c795d8075cf20171fe70ace5af2 building syzkaller on 1c65791efe9456a21463647b20027e6f8c2c21af ensuring issue is reproducible on original commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 5ecc35bcdbb475b4e331f886a91ad2885025465b27955fd72869c5a2ec9126a5 all runs: crashed: general protection fault in security_inode_getattr representative crash: general protection fault in security_inode_getattr, types: [DoS] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 2aae386719bf6cc17f9709b74dec162f5ecf5447d14173719dde1395e52097e1 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: [NULL-POINTER-DEREFERENCE] the bug reproduces without the instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed kconfig minimization: base=4788 full=6023 leaves diff=246 split chunks (needed=false): <246> split chunk #0 of len 246 into 5 parts testing without sub-chunk 1/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 68adfaa3ba3dcbadefa64dc671d26d04446ed43db433eb229f12c7708feae5ed 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 1a2b8e868a091f61224037247c9db83adc881a3e9a87e85cb7cd600ba2ddc78c 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 4e4e027326c1427588dc35981402090eb81e0bdaa348a06dfe345ab44599f4fa 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 5f14d8791bc556b0cf7deeae2aab3e828a4479ba4a753914cc6c189d3241effb 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: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit 094fc3778d6b9c795d8075cf20171fe70ace5af2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 failed building 094fc3778d6b9c795d8075cf20171fe70ace5af2: net/socket.c:1128:(.text+0x817): undefined reference to `wext_handle_ioctl' net/socket.c:3397:(.text+0xa08): undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346:(.text+0x109): undefined reference to `wext_proc_exit' net/core/net-procfs.c:330:(.text+0x1e4): undefined reference to `wext_proc_init' minimized to 46 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 USB_XHCI_PCI_RENESAS 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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing current HEAD e8b14e1cefe8a3049a46a48685bf937ca244949d testing commit e8b14e1cefe8a3049a46a48685bf937ca244949d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44 kernel signature: 1926da6af651e31bc7d899adc6970fed9f6390bddeb0fc4d30616d7eeb727235 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: [NULL-POINTER-DEREFERENCE] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 51m32.700417752s (build: 14m49.735218713s, test: 35m21.705104007s) crash still not fixed or there were kernel test errors commit msg: Merge 5.10.250 into android13-5.10-lts 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 118697067 P4D 118697067 PUD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 496 Comm: syz.2.16 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:security_inode_getattr+0x4/0x40 security/security.c:1265 Code: 85 c0 75 0a 48 8b 1b 48 85 db 75 eb 31 c0 5b 41 5c 41 5d 5d c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 47 08 <48> 8b 40 30 f6 40 0d 02 75 2f 55 48 89 e5 41 54 49 89 fc 53 48 8b RSP: 0018:ffffc900006e78a0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810e10e680 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc900006e79a0 RDI: ffffc900006e7990 RBP: ffffc900006e78c8 R08: 0000000000000064 R09: ffff88810e2262d8 R10: 0000000000010000 R11: 0000000000000000 R12: ffffc900006e79a0 R13: 00000000000007ff R14: 0000000000000000 R15: ffffc900006e7990 FS: 00007f2ca5dd46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 0000000118687000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ovl_copy_up_one+0xaa/0xd40 fs/overlayfs/copy_up.c:882 ovl_copy_up_flags+0xb6/0x100 fs/overlayfs/copy_up.c:964 ovl_maybe_copy_up+0x8d/0xb0 fs/overlayfs/copy_up.c:996 ovl_open+0x27/0x80 fs/overlayfs/file.c:151 do_dentry_open+0x157/0x3d0 fs/open.c:819 vfs_open fs/open.c:944 [inline] dentry_open+0x48/0x70 fs/open.c:960 file_open+0xca/0x230 fs/incfs/vfs.c:1478 do_dentry_open+0x157/0x3d0 fs/open.c:819 vfs_open+0x28/0x30 fs/open.c:944 do_open fs/namei.c:3399 [inline] path_openat+0xbbd/0x10d0 fs/namei.c:3517 do_filp_open+0x9d/0x140 fs/namei.c:3544 do_sys_openat2+0x9c/0x210 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_creat fs/open.c:1311 [inline] __se_sys_creat fs/open.c:1305 [inline] __x64_sys_creat+0x46/0x60 fs/open.c:1305 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f2ca636c8f9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2ca5dd4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f2ca659afa0 RCX: 00007f2ca636c8f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000100 RBP: 00007f2ca63fe1bc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2ca659afa0 R15: 00007fff0638ad98 Modules linked in: CR2: 0000000000000030 ---[ end trace 74f5b4e5a1ad07eb ]--- RIP: 0010:security_inode_getattr+0x4/0x40 security/security.c:1265 Code: 85 c0 75 0a 48 8b 1b 48 85 db 75 eb 31 c0 5b 41 5c 41 5d 5d c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 47 08 <48> 8b 40 30 f6 40 0d 02 75 2f 55 48 89 e5 41 54 49 89 fc 53 48 8b RSP: 0018:ffffc900006e78a0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810e10e680 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc900006e79a0 RDI: ffffc900006e7990 RBP: ffffc900006e78c8 R08: 0000000000000064 R09: ffff88810e2262d8 R10: 0000000000010000 R11: 0000000000000000 R12: ffffc900006e79a0 R13: 00000000000007ff R14: 0000000000000000 R15: ffffc900006e7990 FS: 00007f2ca5dd46c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 0000000118687000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 85 c0 test %eax,%eax 2: 75 0a jne 0xe 4: 48 8b 1b mov (%rbx),%rbx 7: 48 85 db test %rbx,%rbx a: 75 eb jne 0xfffffff7 c: 31 c0 xor %eax,%eax e: 5b pop %rbx f: 41 5c pop %r12 11: 41 5d pop %r13 13: 5d pop %rbp 14: c3 ret 15: 31 c0 xor %eax,%eax 17: c3 ret 18: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 1f: 00 00 00 00 23: 0f 1f 00 nopl (%rax) 26: 48 8b 47 08 mov 0x8(%rdi),%rax * 2a: 48 8b 40 30 mov 0x30(%rax),%rax <-- trapping instruction 2e: f6 40 0d 02 testb $0x2,0xd(%rax) 32: 75 2f jne 0x63 34: 55 push %rbp 35: 48 89 e5 mov %rsp,%rbp 38: 41 54 push %r12 3a: 49 89 fc mov %rdi,%r12 3d: 53 push %rbx 3e: 48 rex.W 3f: 8b .byte 0x8b