Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/05/23 | upstream (ToT) | 5fe326b44676 | C | [report] KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock |
syzbot |
sign-in | mailing list | source | docs |
Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/05/23 | upstream (ToT) | 5fe326b44676 | C | [report] KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock origin:upstream | C | error | 1 | 91d | 501d | 0/3 | upstream: reported C repro on 2023/05/21 13:36 | |
upstream | KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock ext4 | C | error | done | 7 | 279d | 556d | 25/28 | fixed on 2024/02/03 12:44 |
android-5-10 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock | syz | 1 | 23d | 156d | 0/2 | premoderation: reported syz repro on 2024/04/30 09:18 | ||
android-6-1 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock origin:upstream | C | 2 | 3d20h | 156d | 0/2 | upstream: reported C repro on 2024/04/30 15:29 | ||
android-5-15 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock origin:upstream | C | 1 | 30d | 127d | 0/2 | upstream: reported C repro on 2024/05/29 02:55 | ||
android-54 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock | C | 1 | 72d | 156d | 0/2 | upstream: reported C repro on 2024/04/30 09:11 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/06/26 08:11 | 14m | norbert.kaminski@infogain.com | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6f861765464f43a71462d52026fbddfc858239a5 | report log |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/09/21 20:36 | 2h04m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/08/18 19:28 | 1h16m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/07/06 21:19 | 1h01m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/05/27 23:45 | 1h31m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/04/22 17:11 | 2h05m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/03/22 09:44 | 1h09m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/02/21 05:34 | 1h01m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/01/10 22:22 | 1h22m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/12/11 13:50 | 1h26m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/11/10 23:54 | 1h32m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/10/08 14:18 | 1h12m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/08/18 01:46 | 2h07m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/06/23 05:39 | 55m | bisect fix | linux-6.1.y | OK (0) job log log |
loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. ================================================================== BUG: KASAN: slab-out-of-bounds in ext4_read_inline_data fs/ext4/inline.c:210 [inline] BUG: KASAN: slab-out-of-bounds in ext4_convert_inline_data_nolock+0x319/0xda0 fs/ext4/inline.c:1216 Read of size 20 at addr ffff888021fc41a3 by task syz-executor200/3543 CPU: 1 PID: 3543 Comm: syz-executor200 Not tainted 6.1.29-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb 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+0x319/0xda0 fs/ext4/inline.c:1216 ext4_convert_inline_data+0x4cf/0x610 fs/ext4/inline.c:2077 ext4_fallocate+0x149/0x2160 fs/ext4/extents.c:4702 vfs_fallocate+0x547/0x6b0 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+0xb9/0x100 fs/open.c:352 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd1575f3059 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 17 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffbd64e728 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fd157661720 RCX: 00007fd1575f3059 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000003 R14: 00007fffbd64e760 R15: 000000000000000c </TASK> Allocated by task 3397: 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+0x50/0x370 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/0x2d0 mm/slub.c:3422 vm_area_dup+0x23/0x1b0 kernel/fork.c:466 dup_mmap kernel/fork.c:644 [inline] dup_mm+0xa7c/0x1610 kernel/fork.c:1532 copy_mm+0xca/0x160 kernel/fork.c:1581 copy_process+0x19a2/0x4020 kernel/fork.c:2259 kernel_clone+0x222/0x920 kernel/fork.c:2679 __do_sys_clone kernel/fork.c:2820 [inline] __se_sys_clone kernel/fork.c:2804 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2804 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 3398: 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+0xd6/0x120 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+0x292/0x510 mm/slub.c:3683 remove_vma mm/mmap.c:144 [inline] exit_mmap+0x538/0x9f0 mm/mmap.c:3149 __mmput+0x115/0x3c0 kernel/fork.c:1191 exit_mm+0x226/0x300 kernel/exit.c:563 do_exit+0x67e/0x2300 kernel/exit.c:856 do_group_exit+0x202/0x2b0 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:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888021fc40d8 which belongs to the cache vm_area_struct of size 152 The buggy address is located 51 bytes to the right of 152-byte region [ffff888021fc40d8, ffff888021fc4170) The buggy address belongs to the physical page: page:ffffea000087f100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x21fc4 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888140007b40 raw: 0000000000000000 0000000000120012 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 3397, tgid 3397 (sshd), ts 46628352006, free_ts 45979203794 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533 prep_new_page mm/page_alloc.c:2540 [inline] get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5559 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xa71/0x1080 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+0x1a5/0x2d0 mm/slub.c:3422 vm_area_dup+0x23/0x1b0 kernel/fork.c:466 dup_mmap kernel/fork.c:644 [inline] dup_mm+0xa7c/0x1610 kernel/fork.c:1532 copy_mm+0xca/0x160 kernel/fork.c:1581 copy_process+0x19a2/0x4020 kernel/fork.c:2259 kernel_clone+0x222/0x920 kernel/fork.c:2679 __do_sys_clone kernel/fork.c:2820 [inline] __se_sys_clone kernel/fork.c:2804 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2804 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1460 [inline] free_pcp_prepare mm/page_alloc.c:1510 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388 free_unref_page_list+0x107/0x810 mm/page_alloc.c:3530 release_pages+0x2836/0x2b40 mm/swap.c:1055 tlb_batch_pages_flush mm/mmu_gather.c:59 [inline] tlb_flush_mmu_free mm/mmu_gather.c:254 [inline] tlb_flush_mmu+0xfc/0x210 mm/mmu_gather.c:261 tlb_finish_mmu+0xce/0x1f0 mm/mmu_gather.c:361 exit_mmap+0x3c3/0x9f0 mm/mmap.c:3139 __mmput+0x115/0x3c0 kernel/fork.c:1191 exit_mm+0x226/0x300 kernel/exit.c:563 do_exit+0x67e/0x2300 kernel/exit.c:856 do_group_exit+0x202/0x2b0 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:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff888021fc4080: fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb ffff888021fc4100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc >ffff888021fc4180: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb ^ ffff888021fc4200: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc ffff888021fc4280: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/05/23 13:56 | linux-6.1.y | fa74641fb6b9 | 4bce1a3e | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock | |
2023/04/15 09:27 | linux-6.1.y | 0102425ac76b | ec410564 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in ext4_convert_inline_data_nolock |