ci2 starts bisection 2024-04-06 20:03:21.877228189 +0000 UTC m=+65049.835041606 bisecting fixing commit since d30b996835c08018a70dd52c588ba15de1c8378b building syzkaller on cb976f63e0177b96eb9ce1c631cc5e2c4b4b0759 ensuring issue is reproducible on original commit d30b996835c08018a70dd52c588ba15de1c8378b testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 533dbe52095ecb776467e1bd9b573d225aa8cb6f9e7826972209ff0ea44db0b9 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #1: crashed: KASAN: use-after-free Read in ext4_search_dir run #2: crashed: KASAN: use-after-free Read in ext4_search_dir run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: use-after-free Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #8: crashed: KASAN: use-after-free Read in ext4_search_dir run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #10: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #11: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #12: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #13: crashed: KASAN: use-after-free Read in ext4_search_dir run #14: crashed: KASAN: use-after-free Read in ext4_search_dir run #15: crashed: KASAN: use-after-free Read in ext4_search_dir run #16: crashed: KASAN: use-after-free Read in ext4_search_dir run #17: crashed: KASAN: use-after-free Read in ext4_search_dir run #18: crashed: KASAN: use-after-free Read in ext4_search_dir run #19: crashed: KASAN: use-after-free Read in ext4_search_dir representative crash: KASAN: slab-out-of-bounds Read in ext4_search_dir, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a186bdcade7f8f26af7838736e8c06e5ce14d7fc8978f372c18d540b2c37d695 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #1: crashed: KASAN: use-after-free Read in ext4_search_dir run #2: crashed: KASAN: use-after-free Read in ext4_search_dir run #3: crashed: KASAN: use-after-free Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir representative crash: KASAN: slab-out-of-bounds Read in ext4_search_dir, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed kconfig minimization: base=4789 full=6022 leaves diff=238 split chunks (needed=false): <238> split chunk #0 of len 238 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99a446f049bb51f93f54b76fb0e1d423aba208671dbd6e7e804f60ba6b152ca2 run #0: crashed: KASAN: use-after-free Read in ext4_search_dir run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #2: crashed: KASAN: use-after-free Read in ext4_search_dir run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: use-after-free Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: use-after-free Read in ext4_search_dir run #8: crashed: KASAN: use-after-free Read in ext4_search_dir run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir representative crash: KASAN: use-after-free Read in ext4_search_dir, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e6c0928416fa8f26fe132d0a3738d8a7170da66a4f909cbeb309bbe599c3cae run #0: crashed: KASAN: use-after-free Read in ext4_search_dir run #1: crashed: KASAN: use-after-free Read in ext4_search_dir run #2: crashed: KASAN: use-after-free Read in ext4_search_dir run #3: crashed: KASAN: use-after-free Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: use-after-free Read in ext4_search_dir run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #8: crashed: KASAN: use-after-free Read in ext4_search_dir run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir representative crash: KASAN: use-after-free Read in ext4_search_dir, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88289d4f57accb2aca083ed1ea4c919e9df8f0eaf1f7b6d8eb43e2a762afc2f5 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #1: crashed: KASAN: use-after-free Read in ext4_search_dir run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #3: crashed: KASAN: use-after-free Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: use-after-free Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: use-after-free Read in ext4_search_dir run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #9: crashed: KASAN: use-after-free Read in ext4_search_dir representative crash: KASAN: slab-out-of-bounds Read in ext4_search_dir, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8b80e9e998ddabb45fc295bd2297921ae440f3e7e71ae76b58d07f96764a3e5a run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #1: crashed: KASAN: use-after-free Read in ext4_search_dir run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #3: crashed: KASAN: use-after-free Read in ext4_search_dir run #4: crashed: KASAN: use-after-free Read in ext4_search_dir run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: use-after-free Read in ext4_search_dir run #8: crashed: KASAN: use-after-free Read in ext4_search_dir run #9: crashed: KASAN: use-after-free Read in ext4_search_dir representative crash: KASAN: slab-out-of-bounds Read in ext4_search_dir, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit d30b996835c08018a70dd52c588ba15de1c8378b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building d30b996835c08018a70dd52c588ba15de1c8378b: net/socket.c:1126: undefined reference to `wext_handle_ioctl' net/socket.c:3395: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 46 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 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD e7daca75b4c3d290e04c819a98f91127c21bd5ee testing commit e7daca75b4c3d290e04c819a98f91127c21bd5ee gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28a379bd66abb73e00d16af29881e67d351339a00f2e5158fd8447724c38fed7 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #2: crashed: KASAN: use-after-free Read in ext4_search_dir run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_search_dir run #5: crashed: KASAN: use-after-free Read in ext4_search_dir run #6: crashed: KASAN: use-after-free Read in ext4_search_dir run #7: crashed: KASAN: use-after-free Read in ext4_search_dir run #8: crashed: KASAN: use-after-free Read in ext4_search_dir run #9: crashed: KASAN: use-after-free Read in ext4_search_dir representative crash: KASAN: slab-out-of-bounds Read in ext4_search_dir, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h2m32.516582012s (build: 24m41.132411727s, test: 36m21.485459646s) crash still not fixed or there were kernel test errors commit msg: ANDROID: GKI: db845c: Update symbols list and ABI crash: KASAN: slab-out-of-bounds Read in ext4_search_dir EXT4-fs (loop0): mounted filesystem without journal. Opts: jqfmt=vfsold,resgid=0x000000000000ee00,bh,noload,data_err=ignore,usrjquota=,,errors=continue ================================================================== BUG: KASAN: slab-out-of-bounds in ext4_search_dir+0x18d/0x1c0 fs/ext4/namei.c:1515 Read of size 1 at addr ffff888103ddbd23 by task syz-executor.0/357 CPU: 0 PID: 357 Comm: syz-executor.0 Not tainted 5.10.209-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x81/0xac lib/dump_stack.c:118 print_address_description.constprop.0+0x24/0x160 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report.cold+0x82/0xdb mm/kasan/report.c:452 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report_generic.c:306 ext4_search_dir+0x18d/0x1c0 fs/ext4/namei.c:1515 ext4_find_inline_entry+0x20c/0x360 fs/ext4/inline.c:1700 __ext4_find_entry+0x8ec/0xdf0 fs/ext4/namei.c:1588 ext4_lookup_entry fs/ext4/namei.c:1743 [inline] ext4_lookup fs/ext4/namei.c:1811 [inline] ext4_lookup+0x153/0x6b0 fs/ext4/namei.c:1802 __lookup_hash+0xe5/0x150 fs/namei.c:1541 filename_create+0x16a/0x410 fs/namei.c:3614 user_path_create fs/namei.c:3671 [inline] do_mkdirat+0xb1/0x290 fs/namei.c:3811 __do_sys_mkdirat fs/namei.c:3829 [inline] __se_sys_mkdirat fs/namei.c:3827 [inline] __x64_sys_mkdirat+0x71/0xb0 fs/namei.c:3827 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f3026592ae9 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:00007f30261150c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f30266b1f80 RCX: 00007f3026592ae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f30265de47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f30266b1f80 R15: 00007fff927b51a8 Allocated by task 0: (stack is not available) The buggy address belongs to the object at ffff888103ddbb80 which belongs to the cache sgpool-16 of size 512 The buggy address is located 419 bytes inside of 512-byte region [ffff888103ddbb80, ffff888103ddbd80) The buggy address belongs to the page: page:ffffea00040f7680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103dda head:ffffea00040f7680 order:1 compound_mapcount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888103d8d380 raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 1819743552, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page mm/page_alloc.c:2462 [inline] get_page_from_freelist+0x1fee/0x2ad0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x2ae/0x2360 mm/page_alloc.c:5346 __alloc_pages include/linux/gfp.h:544 [inline] __alloc_pages_node include/linux/gfp.h:557 [inline] alloc_pages_node include/linux/gfp.h:571 [inline] alloc_pages include/linux/gfp.h:590 [inline] alloc_slab_page mm/slub.c:1665 [inline] allocate_slab+0x30f/0x460 mm/slub.c:1808 new_slab mm/slub.c:1869 [inline] new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc.constprop.0+0x32b/0x730 mm/slub.c:2791 __slab_alloc mm/slub.c:2831 [inline] slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc+0x491/0x4f0 mm/slub.c:2960 mempool_alloc_slab+0x12/0x20 mm/mempool.c:513 mempool_init_node mm/mempool.c:202 [inline] mempool_init_node+0x28e/0x5d0 mm/mempool.c:180 mempool_create_node mm/mempool.c:271 [inline] mempool_create+0x6e/0xa0 mm/mempool.c:256 mempool_create_slab_pool include/linux/mempool.h:69 [inline] sg_pool_init+0xeb/0x1af lib/sg_pool.c:157 do_one_initcall+0x92/0x2d0 init/main.c:1195 do_initcall_level init/main.c:1268 [inline] do_initcalls init/main.c:1284 [inline] do_basic_setup init/main.c:1304 [inline] kernel_init_freeable+0x48a/0x4e0 init/main.c:1508 kernel_init+0xd/0x10d init/main.c:1395 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 page_owner free stack trace missing Memory state around the buggy address: ffff888103ddbc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888103ddbc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888103ddbd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888103ddbd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888103ddbe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== EXT4-fs error (device loop0): ext4_find_dest_de:2075: inode #12: block 7: comm syz-executor.0: bad entry in directory: rec_len % 4 != 0 - offset=0, inode=3089191003, rec_len=43069, size=56 fake=0