Title | Replies (including bot) | Last reply |
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[syzbot] KASAN: use-after-free Read in filp_close | 3 (7) | 2022/06/05 18:29 |
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Title | Replies (including bot) | Last reply |
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[syzbot] KASAN: use-after-free Read in filp_close | 3 (7) | 2022/06/05 18:29 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
android-54 | KASAN: use-after-free Read in filp_close | C | 3 | 1166d | 1371d | 0/2 | auto-obsoleted due to no activity on 2023/04/21 02:05 | ||
upstream | KASAN: null-ptr-deref Read in filp_close (2) fs | C | 3 | 1188d | 1297d | 20/28 | fixed on 2021/11/10 13:22 | ||
android-5-10 | general protection fault in filp_close | 1 | 569d | 569d | 0/2 | auto-obsoleted due to no activity on 2023/06/22 23:34 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2022/06/05 18:10 | 17m | viro@zeniv.linux.org.uk | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.fd | OK | |
2022/06/05 11:38 | 17m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 952923ddc011 | OK |
================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in atomic_long_read include/linux/atomic/atomic-instrumented.h:1265 [inline] BUG: KASAN: use-after-free in filp_close+0x22/0x160 fs/open.c:1382 Read of size 8 at addr ffff88801eb90070 by task syz-executor335/4998 CPU: 1 PID: 4998 Comm: syz-executor335 Not tainted 5.18.0-syzkaller-13842-g952923ddc011 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_long_read include/linux/atomic/atomic-instrumented.h:1265 [inline] filp_close+0x22/0x160 fs/open.c:1382 close_files fs/file.c:432 [inline] put_files_struct fs/file.c:447 [inline] put_files_struct+0x1d0/0x350 fs/file.c:444 exit_files+0x7e/0xa0 fs/file.c:464 do_exit+0xac8/0x2a00 kernel/exit.c:790 do_group_exit+0xd2/0x2f0 kernel/exit.c:925 get_signal+0x2542/0x2600 kernel/signal.c:2857 arch_do_signal_or_restart+0x82/0x20f0 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop kernel/entry/common.c:166 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f556b96d149 Code: Unable to access opcode bytes at RIP 0x7f556b96d11f. RSP: 002b:00007f556b91a2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f556b9f0428 RCX: 00007f556b96d149 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f556b9f042c RBP: 00007f556b9f0420 R08: 0200000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f556b9f042c R13: 00007f556b9be064 R14: 0200000000000000 R15: 0000000000000005 </TASK> Allocated by task 4998: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:469 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:750 [inline] slab_alloc_node mm/slub.c:3214 [inline] slab_alloc mm/slub.c:3222 [inline] __kmem_cache_alloc_lru mm/slub.c:3229 [inline] kmem_cache_alloc+0x204/0x3b0 mm/slub.c:3239 kmem_cache_zalloc include/linux/slab.h:723 [inline] __alloc_file+0x21/0x270 fs/file_table.c:138 alloc_empty_file+0x6d/0x170 fs/file_table.c:187 path_openat+0xe4/0x2910 fs/namei.c:3639 do_filp_open+0x1aa/0x400 fs/namei.c:3680 do_sys_openat2+0x16d/0x4c0 fs/open.c:1278 do_sys_open fs/open.c:1294 [inline] __do_sys_openat fs/open.c:1310 [inline] __se_sys_openat fs/open.c:1305 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1305 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Freed by task 22: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x166/0x1a0 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1727 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1753 slab_free mm/slub.c:3507 [inline] kmem_cache_free+0xdd/0x5a0 mm/slub.c:3524 rcu_do_batch kernel/rcu/tree.c:2578 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2838 __do_softirq+0x29b/0x9c2 kernel/softirq.c:571 Last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 call_rcu+0x99/0x790 kernel/rcu/tree.c:3126 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 ptrace_notify+0x114/0x140 kernel/signal.c:2353 ptrace_report_syscall include/linux/ptrace.h:420 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:482 [inline] syscall_exit_work kernel/entry/common.c:249 [inline] syscall_exit_to_user_mode_prepare+0xdb/0x230 kernel/entry/common.c:276 __syscall_exit_to_user_mode_work kernel/entry/common.c:281 [inline] syscall_exit_to_user_mode+0x9/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 task_work_add+0x3a/0x1f0 kernel/task_work.c:48 fput fs/file_table.c:378 [inline] fput+0xe7/0x190 fs/file_table.c:371 io_close fs/io_uring.c:6053 [inline] io_issue_sqe+0x3f29/0x9780 fs/io_uring.c:8464 io_queue_sqe fs/io_uring.c:8794 [inline] io_submit_sqe fs/io_uring.c:9058 [inline] io_submit_sqes+0x161d/0x8000 fs/io_uring.c:9169 __do_sys_io_uring_enter+0x1112/0x2300 fs/io_uring.c:12101 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 The buggy address belongs to the object at ffff88801eb90000 which belongs to the cache filp of size 456 The buggy address is located 112 bytes inside of 456-byte region [ffff88801eb90000, ffff88801eb901c8) The buggy address belongs to the physical page: page:ffffea00007ae400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1eb90 head:ffffea00007ae400 order:1 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea00007aa900 dead000000000007 ffff8881400078c0 raw: 0000000000000000 00000000000c000c 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 3442, tgid 3442 (rm), ts 37980828809, free_ts 17882496614 prep_new_page mm/page_alloc.c:2456 [inline] get_page_from_freelist+0x1290/0x3b70 mm/page_alloc.c:4198 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5426 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1797 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1942 new_slab mm/slub.c:2002 [inline] ___slab_alloc+0x985/0xd90 mm/slub.c:3002 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3089 slab_alloc_node mm/slub.c:3180 [inline] slab_alloc mm/slub.c:3222 [inline] __kmem_cache_alloc_lru mm/slub.c:3229 [inline] kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3239 kmem_cache_zalloc include/linux/slab.h:723 [inline] __alloc_file+0x21/0x270 fs/file_table.c:138 alloc_empty_file+0x6d/0x170 fs/file_table.c:187 path_openat+0xe4/0x2910 fs/namei.c:3639 do_filp_open+0x1aa/0x400 fs/namei.c:3680 do_sys_openat2+0x16d/0x4c0 fs/open.c:1278 do_sys_open fs/open.c:1294 [inline] __do_sys_openat fs/open.c:1310 [inline] __se_sys_openat fs/open.c:1305 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1305 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page+0x19/0x6a0 mm/page_alloc.c:3438 __unfreeze_partials+0x17c/0x1a0 mm/slub.c:2521 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:750 [inline] slab_alloc_node mm/slub.c:3214 [inline] slab_alloc mm/slub.c:3222 [inline] __kmem_cache_alloc_lru mm/slub.c:3229 [inline] kmem_cache_alloc+0x204/0x3b0 mm/slub.c:3239 kmem_cache_zalloc include/linux/slab.h:723 [inline] __alloc_file+0x21/0x270 fs/file_table.c:138 alloc_empty_file+0x6d/0x170 fs/file_table.c:187 path_openat+0xe4/0x2910 fs/namei.c:3639 do_filp_open+0x1aa/0x400 fs/namei.c:3680 do_sys_openat2+0x16d/0x4c0 fs/open.c:1278 do_sys_open fs/open.c:1294 [inline] __do_sys_openat fs/open.c:1310 [inline] __se_sys_openat fs/open.c:1305 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1305 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Memory state around the buggy address: ffff88801eb8ff00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ffff88801eb8ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88801eb90000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801eb90080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801eb90100: 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/06/05 22:31 | upstream | 952923ddc011 | c8857892 | .config | strace log | report | syz | C | ci-upstream-kasan-gce | KASAN: use-after-free Read in filp_close | ||
2022/06/05 08:49 | upstream | 952923ddc011 | c8857892 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2022/06/05 12:39 | upstream | 952923ddc011 | c8857892 | .config | console log | report | syz | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in filp_close | |||
2022/06/05 20:20 | upstream | 952923ddc011 | c8857892 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Read in filp_close | |||
2022/06/05 16:54 | upstream | 952923ddc011 | c8857892 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Read in filp_close | |||
2022/06/05 07:29 | upstream | 952923ddc011 | c8857892 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in filp_close | |||
2022/06/05 05:08 | upstream | 952923ddc011 | c8857892 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Read in filp_close | |||
2023/01/14 01:48 | linux-next | 0a093b2893c7 | 529798b0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2023/01/13 11:12 | linux-next | 0a093b2893c7 | 96166539 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2023/01/12 12:35 | linux-next | 0a093b2893c7 | 96166539 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2023/01/12 07:03 | linux-next | 0a093b2893c7 | 96166539 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2023/01/12 06:51 | linux-next | 0a093b2893c7 | 96166539 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | ||
2022/06/05 01:52 | linux-next | 1cfd968b58a1 | c8857892 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | |||
2022/06/04 23:51 | linux-next | 1cfd968b58a1 | c8857892 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | |||
2022/06/04 23:27 | linux-next | 1cfd968b58a1 | c8857892 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | |||
2022/05/25 00:04 | linux-next | 09ce5091ff97 | 647c0e27 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close | |||
2022/05/24 10:48 | linux-next | 09ce5091ff97 | e7f9308d | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | KASAN: use-after-free Read in filp_close |