Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/05/21 | upstream (ToT) | 0dd2a6fb1e34 | C | [report] KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/05/21 | upstream (ToT) | 0dd2a6fb1e34 | C | [report] KASAN: slab-out-of-bounds Read in ext4_convert_inline_data_nolock |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock ext4 | C | error | done | 7 | 290d | 567d | 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 | 34d | 167d | 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 | 14d | 167d | 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 | error | 1 | 41d | 138d | 0/2 | upstream: reported C repro on 2024/05/29 02:55 | |
linux-6.1 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock origin:upstream | C | 2 | 23d | 548d | 0/3 | upstream: reported C repro on 2023/04/15 09:27 | ||
android-54 | KASAN: use-after-free Read in ext4_convert_inline_data_nolock | C | 1 | 1d12h | 167d | 0/2 | upstream: reported C repro on 2024/04/30 09:11 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/08/14 23:13 | 1m | bisect fix | linux-5.15.y | error job log | |
2024/07/04 06:45 | 3h09m | bisect fix | linux-5.15.y | OK (0) job log log | |
2024/05/26 15:02 | 1h14m | bisect fix | linux-5.15.y | OK (0) job log log | |
2024/04/21 12:21 | 1h02m | bisect fix | linux-5.15.y | OK (0) job log log | |
2024/03/21 01:15 | 1h08m | bisect fix | linux-5.15.y | OK (0) job log log | |
2024/02/19 23:46 | 57m | bisect fix | linux-5.15.y | OK (0) job log log | |
2024/01/09 18:50 | 55m | bisect fix | linux-5.15.y | OK (0) job log log | |
2023/12/10 17:51 | 56m | bisect fix | linux-5.15.y | OK (0) job log log | |
2023/11/10 11:12 | 1h03m | bisect fix | linux-5.15.y | OK (0) job log log | |
2023/10/07 05:00 | 2h02m | bisect fix | linux-5.15.y | OK (0) job log log | |
2023/08/12 14:37 | 1h36m | bisect fix | linux-5.15.y | OK (0) job log log | |
2023/06/21 17:30 | 41m | bisect fix | linux-5.15.y | OK (0) job log log |
loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none. ================================================================== BUG: KASAN: use-after-free in ext4_read_inline_data fs/ext4/inline.c:209 [inline] BUG: KASAN: use-after-free in ext4_convert_inline_data_nolock+0x319/0xda0 fs/ext4/inline.c:1223 Read of size 20 at addr ffff88801df5a1a3 by task syz-executor322/3498 CPU: 1 PID: 3498 Comm: syz-executor322 Not tainted 5.15.112-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+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ext4_read_inline_data fs/ext4/inline.c:209 [inline] ext4_convert_inline_data_nolock+0x319/0xda0 fs/ext4/inline.c:1223 ext4_convert_inline_data+0x4cf/0x610 fs/ext4/inline.c:2056 ext4_fallocate+0x148/0x20c0 fs/ext4/extents.c:4705 vfs_fallocate+0x54a/0x6b0 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __x64_sys_fallocate+0xb9/0x100 fs/open.c:337 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+0x61/0xcb RIP: 0033:0x7fe994521299 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 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:00007fff77e698e8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fe994596740 RCX: 00007fe994521299 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 0000000000000001 R08: 001c00000000000c R09: 001c00000000000c R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000003 R14: 00007fff77e69907 R15: 00007fff77e6990a </TASK> Allocated by task 2967: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x168/0x300 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] tomoyo_realpath_from_path+0xd8/0x5e0 security/tomoyo/realpath.c:254 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x22c/0x490 security/tomoyo/file.c:771 security_file_open+0x5f/0xa0 security/security.c:1650 do_dentry_open+0x315/0xfb0 fs/open.c:813 do_open fs/namei.c:3538 [inline] path_openat+0x2702/0x2f20 fs/namei.c:3672 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 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+0x61/0xcb Freed by task 2967: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0xf1/0x270 mm/slub.c:4559 tomoyo_realpath_from_path+0x5ad/0x5e0 security/tomoyo/realpath.c:291 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x22c/0x490 security/tomoyo/file.c:771 security_file_open+0x5f/0xa0 security/security.c:1650 do_dentry_open+0x315/0xfb0 fs/open.c:813 do_open fs/namei.c:3538 [inline] path_openat+0x2702/0x2f20 fs/namei.c:3672 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 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+0x61/0xcb The buggy address belongs to the object at ffff88801df5a000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 419 bytes inside of 4096-byte region [ffff88801df5a000, ffff88801df5b000) The buggy address belongs to the page: page:ffffea000077d600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1df58 head:ffffea000077d600 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011c42140 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2967, ts 22174041375, free_ts 22118743760 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] __kmalloc+0x1c9/0x300 mm/slub.c:4403 kmalloc include/linux/slab.h:596 [inline] tomoyo_realpath_from_path+0xd8/0x5e0 security/tomoyo/realpath.c:254 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_number_perm+0x225/0x810 security/tomoyo/file.c:723 tomoyo_path_mknod+0x172/0x1b0 security/tomoyo/tomoyo.c:239 security_path_mknod+0xf1/0x150 security/security.c:1147 may_o_create fs/namei.c:3214 [inline] lookup_open fs/namei.c:3355 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0xc73/0x2f20 fs/namei.c:3669 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 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+0x61/0xcb page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 do_slab_free mm/slub.c:3487 [inline] ___cache_free+0xe3/0x100 mm/slub.c:3506 qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 getname_flags+0xb8/0x4e0 fs/namei.c:138 do_sys_openat2+0xd2/0x500 fs/open.c:1205 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 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+0x61/0xcb Memory state around the buggy address: ffff88801df5a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801df5a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88801df5a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801df5a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801df5a280: fb fb 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/05/21 13:35 | linux-5.15.y | 9d6bde853685 | 4bce1a3e | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in ext4_convert_inline_data_nolock |