Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/05/01 | upstream (ToT) | 4f79eaa2ceac | C | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/05/01 | upstream (ToT) | 4f79eaa2ceac | C | Didn't crash |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | KASAN: use-after-free Read in __ocfs2_find_path origin:upstream | C | done | 11 | 46d | 223d | 3/3 | fixed on 2025/05/05 12:25 | |
upstream | KASAN: use-after-free Read in __ocfs2_find_path ocfs2 | C | inconclusive | 65 | 60d | 219d | 27/28 | upstream: reported C repro on 2024/10/09 20:34 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2025/05/12 21:00 | 4h28m | bisect fix | linux-6.1.y | OK (1) job log | |
2025/04/09 13:43 | 2h10m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/03/05 07:18 | 1h27m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/02/03 00:25 | 1h37m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/12/29 19:50 | 2h02m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/11/09 23:26 | 1h37m | bisect fix | linux-6.1.y | OK (0) job log log |
================================================================== BUG: KASAN: use-after-free in __ocfs2_find_path+0x1ff/0x7e0 fs/ocfs2/alloc.c:1817 Read of size 4 at addr ffff888069f3a000 by task syz.2.14/4402 CPU: 1 PID: 4402 Comm: syz.2.14 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 __ocfs2_find_path+0x1ff/0x7e0 fs/ocfs2/alloc.c:1817 ocfs2_find_leaf+0xcb/0x220 fs/ocfs2/alloc.c:1931 ocfs2_get_clusters_nocache+0x1a9/0xbe0 fs/ocfs2/extent_map.c:418 ocfs2_get_clusters+0x5b5/0xbc0 fs/ocfs2/extent_map.c:621 ocfs2_extent_map_get_blocks+0x248/0x7d0 fs/ocfs2/extent_map.c:668 ocfs2_read_virt_blocks+0x313/0xab0 fs/ocfs2/extent_map.c:977 ocfs2_read_dir_block fs/ocfs2/dir.c:508 [inline] ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline] ocfs2_find_entry+0x436/0x28c0 fs/ocfs2/dir.c:1080 ocfs2_find_files_on_disk+0x10d/0x3a0 fs/ocfs2/dir.c:1982 ocfs2_lookup_ino_from_name+0xad/0x1e0 fs/ocfs2/dir.c:2004 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:136 [inline] ocfs2_get_system_file_inode+0x314/0x7b0 fs/ocfs2/sysfile.c:112 ocfs2_init_global_system_inodes+0x328/0x720 fs/ocfs2/super.c:457 ocfs2_initialize_super fs/ocfs2/super.c:2250 [inline] ocfs2_fill_super+0x2f82/0x5730 fs/ocfs2/super.c:994 mount_bdev+0x2c9/0x3f0 fs/super.c:1443 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632 vfs_get_tree+0x88/0x270 fs/super.c:1573 do_new_mount+0x2ba/0xb40 fs/namespace.c:3056 do_mount fs/namespace.c:3399 [inline] __do_sys_mount fs/namespace.c:3607 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3584 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fddd597feba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fddd66dce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fddd66dcef0 RCX: 00007fddd597feba RDX: 0000000020004440 RSI: 0000000020000780 RDI: 00007fddd66dceb0 RBP: 0000000020004440 R08: 00007fddd66dcef0 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000000020000780 R13: 00007fddd66dceb0 R14: 000000000000444a R15: 00000000200005c0 </TASK> The buggy address belongs to the physical page: page:ffffea0001a7ce80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x69f3a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0001a7cec8 ffff8880b8f411e0 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 4326, tgid 4325 (syz.0.1), ts 63580534674, free_ts 65477335293 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5589 __folio_alloc+0xf/0x30 mm/page_alloc.c:5621 vma_alloc_folio+0x486/0x990 mm/mempolicy.c:2243 shmem_alloc_folio mm/shmem.c:1591 [inline] shmem_alloc_and_acct_folio+0x5a8/0xd50 mm/shmem.c:1615 shmem_get_folio_gfp+0x13f0/0x3470 mm/shmem.c:1943 shmem_get_folio mm/shmem.c:2074 [inline] shmem_write_begin+0x16e/0x4e0 mm/shmem.c:2561 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3845 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3973 generic_file_write_iter+0xab/0x310 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x857/0xbc0 fs/read_write.c:584 ksys_write+0x19c/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 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+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page_list+0x663/0x900 mm/page_alloc.c:3510 release_pages+0x2836/0x2b40 mm/swap.c:1055 __pagevec_release+0x80/0xf0 mm/swap.c:1075 pagevec_release include/linux/pagevec.h:71 [inline] folio_batch_release include/linux/pagevec.h:135 [inline] shmem_undo_range+0x865/0x2390 mm/shmem.c:946 shmem_truncate_range mm/shmem.c:1062 [inline] shmem_evict_inode+0x265/0xa60 mm/shmem.c:1173 evict+0x529/0x930 fs/inode.c:701 __dentry_kill+0x436/0x650 fs/dcache.c:611 dentry_kill+0xbb/0x290 dput+0xfb/0x1d0 fs/dcache.c:918 __fput+0x62e/0x8d0 fs/file_table.c:328 task_work_run+0x246/0x300 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 Memory state around the buggy address: ffff888069f39f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888069f39f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888069f3a000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888069f3a080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888069f3a100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/11/13 08:39 | linux-6.1.y | d7039b844a1c | 62026c85 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in __ocfs2_find_path | ||
2024/11/13 08:38 | linux-6.1.y | d7039b844a1c | 62026c85 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in __ocfs2_find_path | ||
2024/10/07 07:47 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | syz / log | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in __ocfs2_find_path | ||
2024/10/07 07:40 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in __ocfs2_find_path | |
2024/10/07 07:24 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: use-after-free Read in __ocfs2_find_path |