Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() | 3 (3) | 2023/05/12 23:46 |
[syzbot] [nilfs?] KASAN: slab-use-after-free Read in nilfs_load_inode_block | 0 (1) | 2023/05/07 15:32 |
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Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() | 3 (3) | 2023/05/12 23:46 |
[syzbot] [nilfs?] KASAN: slab-use-after-free Read in nilfs_load_inode_block | 0 (1) | 2023/05/07 15:32 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: slab-use-after-free Read in nilfs_load_inode_block (2) nilfs | C | done | 4 | 424d | 439d | 23/28 | fixed on 2023/10/12 12:48 | |
upstream | KASAN: use-after-free Read in nilfs_load_inode_block nilfs | 1 | 725d | 724d | 0/28 | closed as dup on 2022/10/11 10:33 |
NILFS (loop2): error -5 truncating bmap (ino=15) ================================================================== BUG: KASAN: slab-use-after-free in nilfs_load_inode_block+0x11e/0x280 fs/nilfs2/inode.c:1012 Read of size 8 at addr ffff88801f47f430 by task syz-executor323/4999 CPU: 0 PID: 4999 Comm: syz-executor323 Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:351 [inline] print_report+0x163/0x540 mm/kasan/report.c:462 kasan_report+0x176/0x1b0 mm/kasan/report.c:572 nilfs_load_inode_block+0x11e/0x280 fs/nilfs2/inode.c:1012 __nilfs_mark_inode_dirty+0xa5/0x280 fs/nilfs2/inode.c:1089 nilfs_mark_inode_dirty fs/nilfs2/nilfs.h:288 [inline] nilfs_evict_inode+0x189/0x420 fs/nilfs2/inode.c:934 evict+0x2a4/0x620 fs/inode.c:665 nilfs_dispose_list+0x51d/0x5c0 fs/nilfs2/segment.c:816 nilfs_detach_log_writer+0xaf1/0xbb0 fs/nilfs2/segment.c:2852 nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:477 generic_shutdown_super+0x134/0x340 fs/super.c:500 kill_block_super+0x84/0xf0 fs/super.c:1407 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/0x300 kernel/task_work.c:179 ptrace_notify+0x2cd/0x380 kernel/signal.c:2369 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:252 [inline] syscall_exit_to_user_mode_prepare kernel/entry/common.c:279 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:284 [inline] syscall_exit_to_user_mode+0x157/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0b39ccba87 Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcfc3da598 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0b39ccba87 RDX: 00007ffcfc3da659 RSI: 000000000000000a RDI: 00007ffcfc3da650 RBP: 00007ffcfc3da650 R08: 00000000ffffffff R09: 00007ffcfc3da430 R10: 00005555563da683 R11: 0000000000000202 R12: 00007ffcfc3db710 R13: 00005555563da5f0 R14: 00007ffcfc3da5c0 R15: 00007ffcfc3db730 </TASK> Allocated by task 5216: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383 kmalloc include/linux/slab.h:559 [inline] kzalloc include/linux/slab.h:680 [inline] nilfs_find_or_create_root+0x137/0x4e0 fs/nilfs2/the_nilfs.c:810 nilfs_attach_checkpoint+0x123/0x4d0 fs/nilfs2/super.c:529 nilfs_fill_super+0x321/0x600 fs/nilfs2/super.c:1074 nilfs_mount+0x67d/0x9a0 fs/nilfs2/super.c:1326 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3039 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 4999: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:162 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook mm/slub.c:1807 [inline] slab_free mm/slub.c:3786 [inline] __kmem_cache_free+0x264/0x3c0 mm/slub.c:3799 nilfs_segctor_destroy fs/nilfs2/segment.c:2775 [inline] nilfs_detach_log_writer+0x8c1/0xbb0 fs/nilfs2/segment.c:2838 nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:477 generic_shutdown_super+0x134/0x340 fs/super.c:500 kill_block_super+0x84/0xf0 fs/super.c:1407 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/0x300 kernel/task_work.c:179 ptrace_notify+0x2cd/0x380 kernel/signal.c:2369 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:252 [inline] syscall_exit_to_user_mode_prepare kernel/entry/common.c:279 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:284 [inline] syscall_exit_to_user_mode+0x157/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88801f47f400 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 48 bytes inside of freed 256-byte region [ffff88801f47f400, ffff88801f47f500) The buggy address belongs to the physical page: page:ffffea00007d1f80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801f47f600 pfn:0x1f47e head:ffffea00007d1f80 order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000010200 ffff888012441b40 ffffea00008ccc90 ffffea00007a7510 raw: ffff88801f47f600 000000000010000e 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, tgid 1 (swapper/0), ts 9284804112, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1731 prep_new_page mm/page_alloc.c:1738 [inline] get_page_from_freelist+0x321c/0x33a0 mm/page_alloc.c:3502 __alloc_pages+0x255/0x670 mm/page_alloc.c:4768 alloc_page_interleave+0x22/0x1d0 mm/mempolicy.c:2112 alloc_slab_page+0x6a/0x160 mm/slub.c:1851 allocate_slab mm/slub.c:1998 [inline] new_slab+0x84/0x2f0 mm/slub.c:2051 ___slab_alloc+0xa85/0x10a0 mm/slub.c:3192 __slab_alloc mm/slub.c:3291 [inline] __slab_alloc_node mm/slub.c:3344 [inline] slab_alloc_node mm/slub.c:3441 [inline] __kmem_cache_alloc_node+0x1b8/0x290 mm/slub.c:3490 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1057 kmalloc include/linux/slab.h:559 [inline] kzalloc include/linux/slab.h:680 [inline] bus_add_driver+0x163/0x620 drivers/base/bus.c:657 driver_register+0x23a/0x320 drivers/base/driver.c:246 do_one_initcall+0x23d/0x7d0 init/main.c:1246 do_initcall_level+0x157/0x210 init/main.c:1319 do_initcalls+0x3f/0x80 init/main.c:1335 kernel_init_freeable+0x43b/0x5d0 init/main.c:1571 kernel_init+0x1d/0x2a0 init/main.c:1462 page_owner free stack trace missing Memory state around the buggy address: ffff88801f47f300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88801f47f380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88801f47f400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801f47f480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801f47f500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/05/07 12:38 | upstream | fc4354c6e5c2 | 90c93c40 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | |
2023/06/29 15:01 | upstream | b19edac5992d | 134ddc02 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/23 01:21 | upstream | dad9774deaf1 | 79782afc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/21 18:28 | upstream | e660abd551f1 | 79782afc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/14 17:06 | upstream | b6dad5178cea | d2ee9228 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/10 22:46 | upstream | 64569520920a | 49519f06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/06 07:31 | upstream | f8dba31b0a82 | a4ae4f42 | .config | console log | report | info | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | |||
2023/05/24 01:35 | upstream | ae8373a5add4 | 4bce1a3e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/21 07:46 | upstream | 0dd2a6fb1e34 | 4bce1a3e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/14 16:13 | upstream | bb7c241fae62 | 2b9ba477 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/12 08:35 | upstream | 105131df9c3b | adb9a3cd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/10 16:26 | upstream | 16a8829130ca | 14b12a99 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/09 21:03 | upstream | 1dc3731daf1f | 30aa2a7e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/08 17:32 | upstream | ac9a78681b92 | 90c93c40 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/07 11:40 | upstream | fc4354c6e5c2 | 90c93c40 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/05 13:10 | linux-next | 715abedee4cd | a4ae4f42 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/06/04 17:35 | linux-next | 715abedee4cd | a4ae4f42 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Read in nilfs_load_inode_block | ||
2023/05/23 05:47 | linux-next | 715abedee4cd | 4bce1a3e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-use-after-free Read in nilfs_load_inode_block |