ci2 starts bisection 2024-07-06 21:19:32.67195647 +0000 UTC m=+130519.332445405 bisecting fixing commit since fa74641fb6b93a19ccb50579886ecc98320230f9 building syzkaller on 4bce1a3e705a8b62de8194bdb28f5eef89c8feec ensuring issue is reproducible on original commit fa74641fb6b93a19ccb50579886ecc98320230f9 testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5eddbb3e5da5d1426d7fac6027532f1e4b5e7e3a0ffe395d45b612fbd46271aa run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #10: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #11: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #12: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #13: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #14: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #15: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #16: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #17: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #18: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #19: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53a745ca00dab9c5ed996cd8ed8e3188460254b38d3b08039736fccce60f8835 run #0: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3820 full=7524 leaves diff=1994 split chunks (needed=false): <1994> split chunk #0 of len 1994 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6e39fb42b2f82c8beb20881d13e4c5d576891a55ff6b82a75b7afd2765f04992 run #0: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a93612ecd2c1799c5b141835309e0c7e02b0f9b4543158eb2a7e2d422bbcfe5 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b2f79171d8ea14ffd963ce5f979e43f99908cc013faeb4cc5d701b882de4390 run #0: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0f19e359e924c532947efefb612258cee2d15589ff2fc27e99c0a8812c5701f5 run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 81da939d76003d4fd48c4b8bcb0ec734b258150a2c8951829a161035817a8e88 run #0: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock representative crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] the chunk can be dropped disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 7753af06eebfb56b44673bbfcb0b78d73a54ede9 testing commit 7753af06eebfb56b44673bbfcb0b78d73a54ede9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 499d8e36195d07dab092b8deee0540e2c37eec9e96f59d85c68bd6cddbb8c907 run #0: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #1: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #2: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #3: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #4: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #5: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #6: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #7: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #8: crashed: KASAN: use-after-free Read in ext4_convert_inline_data_nolock run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock representative crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h1m41.889725563s (build: 29m11.498935929s, test: 30m11.498208565s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.97 crash: KASAN: use-after-free Read in ext4_convert_inline_data_nolock loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. ================================================================== BUG: KASAN: use-after-free in ext4_read_inline_data fs/ext4/inline.c:210 [inline] BUG: KASAN: use-after-free in ext4_convert_inline_data_nolock+0x282/0xc10 fs/ext4/inline.c:1216 Read of size 20 at addr ffff888102b5d1a3 by task syz-executor.0/1406 CPU: 0 PID: 1406 Comm: syz-executor.0 Not tainted 6.1.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xf4/0x251 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ext4_read_inline_data fs/ext4/inline.c:210 [inline] ext4_convert_inline_data_nolock+0x282/0xc10 fs/ext4/inline.c:1216 ext4_convert_inline_data+0x3b8/0x4d0 fs/ext4/inline.c:2077 ext4_fallocate+0x136/0x1790 fs/ext4/extents.c:4731 vfs_fallocate+0x30c/0x3d0 fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __x64_sys_fallocate+0xa6/0xd0 fs/open.c:352 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8a4e770959 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:00007f8a4e2f30c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f8a4e88ff80 RCX: 00007f8a4e770959 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f8a4e7ccc88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f8a4e88ff80 R15: 00007ffdeae9e388 Allocated by task 1325: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x54/0x3e0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x290 mm/slub.c:3422 vm_area_alloc+0x1b/0xd0 kernel/fork.c:458 mmap_region+0x9fe/0x1780 mm/mmap.c:2743 do_mmap+0x69e/0xb60 mm/mmap.c:1425 vm_mmap_pgoff+0x1b7/0x280 mm/util.c:520 ksys_mmap_pgoff+0x2cf/0x3b0 mm/mmap.c:1471 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Freed by task 1325: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0x122/0x1e0 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] kmem_cache_free+0x2e8/0x510 mm/slub.c:3683 remove_vma mm/mmap.c:144 [inline] exit_mmap+0x31e/0x700 mm/mmap.c:3249 __mmput+0x61/0x290 kernel/fork.c:1199 exit_mm+0x122/0x1b0 kernel/exit.c:563 do_exit+0x81e/0x23a0 kernel/exit.c:856 do_group_exit+0x1b5/0x280 kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff888102b5d1a0 which belongs to the cache vm_area_struct of size 144 The buggy address is located 3 bytes inside of 144-byte region [ffff888102b5d1a0, ffff888102b5d230) The buggy address belongs to the physical page: page:ffffea00040ad740 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b5d flags: 0x200000000000200(slab|node=0|zone=2) raw: 0200000000000200 ffffea00047e0540 dead000000000006 ffff888100163b40 raw: 0000000000000000 0000000000130013 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 493, tgid 493 (modprobe), ts 28908667130, free_ts 28908592430 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x286/0x2b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x2ba7/0x2de0 mm/page_alloc.c:4283 __alloc_pages+0x251/0x640 mm/page_alloc.c:5551 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x70/0x250 mm/slub.c:1992 ___slab_alloc+0x9df/0xe70 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x18b/0x290 mm/slub.c:3422 vm_area_alloc+0x1b/0xd0 kernel/fork.c:458 __install_special_mapping+0x2f/0x290 mm/mmap.c:3529 map_vdso+0x1aa/0x2e0 arch/x86/entry/vdso/vma.c:280 load_elf_binary+0x1a6d/0x23a0 fs/binfmt_elf.c:1287 search_binary_handler fs/exec.c:1737 [inline] exec_binprm fs/exec.c:1778 [inline] bprm_execve+0x7e7/0x1210 fs/exec.c:1847 kernel_execve+0x53b/0x610 fs/exec.c:2012 call_usermodehelper_exec_async+0x1fc/0x310 kernel/umh.c:113 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xca9/0xd80 mm/page_alloc.c:3362 free_unref_page+0x30/0x230 mm/page_alloc.c:3457 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x54/0x3e0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x290 mm/slub.c:3422 vm_area_alloc+0x1b/0xd0 kernel/fork.c:458 __install_special_mapping+0x2f/0x290 mm/mmap.c:3529 map_vdso+0x15b/0x2e0 arch/x86/entry/vdso/vma.c:268 load_elf_binary+0x1a6d/0x23a0 fs/binfmt_elf.c:1287 search_binary_handler fs/exec.c:1737 [inline] exec_binprm fs/exec.c:1778 [inline] bprm_execve+0x7e7/0x1210 fs/exec.c:1847 kernel_execve+0x53b/0x610 fs/exec.c:2012 call_usermodehelper_exec_async+0x1fc/0x310 kernel/umh.c:113 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Memory state around the buggy address: ffff888102b5d080: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb ffff888102b5d100: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff888102b5d180: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb ^ ffff888102b5d200: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb ffff888102b5d280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================