ci2 starts bisection 2024-08-13 23:38:02.594220063 +0000 UTC m=+37525.678619508 bisecting fixing commit since 401a2769d99066952f3bfb73a8ce6b0269bc04d7 building syzkaller on fb427a0782000106c62de76d251e5a02de5406a9 ensuring issue is reproducible on original commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b6bc9a9e45fd67d4898daf9aae0bba6bac615cf0c5d579d31d5795bb8fb2d3ca all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d2785a2dae615c09725a9ee6914da041f0ef6e7e2eb6a9184c2d15f7825f0ad all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] the bug reproduces without the instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=5179 full=6490 leaves diff=254 split chunks (needed=false): <254> split chunk #0 of len 254 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK BUG KASAN LOCKDEP], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 42f8c1b91a3f64cf981aa991b540a84984d952a7eae0299eda240f433e63ed1a all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK BUG], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aeb1edb0384fbb360a67ee3d7a1e17f7bd3b68ddd7d0dac1bebb1098e63de9f3 all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fcf40149c10b7ffe27e2d7661906b96457c6a7d5e41cf186ddb5754e80c068be all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29ab4bd667ae92ef1a8ae50c9918897619b2c14b6754c3bb1d1e1342d58c9690 all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK BUG KASAN LOCKDEP], they are not needed testing commit 401a2769d99066952f3bfb73a8ce6b0269bc04d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 401a2769d99066952f3bfb73a8ce6b0269bc04d7: 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 50 configs; suspects: [HID_ZEROPLUS 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], they are not needed testing current HEAD 660e1a26952bd58eda980b25a200957135f98848 testing commit 660e1a26952bd58eda980b25a200957135f98848 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c6492a9e866798c0398b4c7ac402e268ab8f5749bf90827c1bf87821dff5370 all runs: crashed: UBSAN: shift-out-of-bounds in ext4_handle_clustersize representative crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize, types: [UBSAN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h22m52.424916653s (build: 59m10.112264874s, test: 21m17.357953775s) crash still not fixed or there were kernel test errors commit msg: FROMLIST: sd: Retry START STOP UNIT commands crash: UBSAN: shift-out-of-bounds in ext4_handle_clustersize loop0: detected capacity change from 0 to 512 ================================================================================ UBSAN: shift-out-of-bounds in fs/ext4/super.c:4351:27 shift exponent 59 is too large for 32-bit type 'int' CPU: 0 PID: 1084 Comm: syz-executor.0 Not tainted 6.1.90-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x91 lib/dump_stack.c:106 dump_stack+0x10/0x14 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x261/0x290 lib/ubsan.c:321 ext4_handle_clustersize+0x17e/0x190 fs/ext4/super.c:4351 __ext4_fill_super fs/ext4/super.c:5212 [inline] ext4_fill_super+0x129f/0x2060 fs/ext4/super.c:5651 get_tree_bdev+0x1c6/0x260 fs/super.c:1357 ext4_get_tree+0x10/0x20 fs/ext4/super.c:5681 vfs_get_tree+0x1e/0x80 fs/super.c:1564 do_new_mount+0x149/0x360 fs/namespace.c:3051 path_mount+0x31c/0x550 fs/namespace.c:3381 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x143/0x1b0 fs/namespace.c:3579 __x64_sys_mount+0x20/0x30 fs/namespace.c:3579 x64_sys_call+0x49d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166 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: 0033:0x7fdd7627e3ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007fdd75dfeee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fdd75dfef80 RCX: 00007fdd7627e3ea RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007fdd75dfef40 RBP: 0000000020000040 R08: 00007fdd75dfef80 R09: 0000000000004500 R10: 0000000000004500 R11: 0000000000000246 R12: 0000000020000080 R13: 00007fdd75dfef40 R14: 00000000000004dc R15: 00000000200000c0 ================================================================================ EXT4-fs (loop0): fragment/cluster size (0) != block size (4096)