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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KASAN: slab-out-of-bounds Read in get_block fs | 1 | 1592d | 1588d | 0/28 | auto-closed as invalid on 2020/11/09 17:42 | |||
| linux-4.19 | KASAN: slab-out-of-bounds Read in get_block | C | done | 3 | 1562d | 1678d | 1/1 | fixed on 2020/09/11 21:52 | |
| upstream | KASAN: slab-out-of-bounds Read in get_block (2) fs | 1 | 682d | 682d | 0/28 | auto-obsoleted due to no activity on 2023/05/09 01:15 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2020/09/11 01:53 | 3h43m | bisect fix | linux-4.14.y | OK (1) job log | |
| 2020/08/11 20:33 | 25m | bisect fix | linux-4.14.y | OK (0) job log log |
audit: type=1800 audit(1594576603.343:9): pid=6356 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor063" name="file0" dev="sda1" ino=15707 res=0 MINIX-fs: mounting unchecked file system, running fsck is recommended Process accounting resumed ================================================================== BUG: KASAN: slab-out-of-bounds in add_chain fs/minix/itree_common.c:14 [inline] BUG: KASAN: slab-out-of-bounds in get_branch fs/minix/itree_common.c:52 [inline] BUG: KASAN: slab-out-of-bounds in get_block+0xe06/0x1100 fs/minix/itree_common.c:160 Read of size 2 at addr ffff88808f8a018a by task syz-executor063/6356 CPU: 1 PID: 6356 Comm: syz-executor063 Not tainted 4.14.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1dc mm/kasan/report.c:252 kasan_report_error mm/kasan/report.c:351 [inline] kasan_report mm/kasan/report.c:409 [inline] kasan_report.cold+0xa9/0x2b9 mm/kasan/report.c:393 add_chain fs/minix/itree_common.c:14 [inline] get_branch fs/minix/itree_common.c:52 [inline] get_block+0xe06/0x1100 fs/minix/itree_common.c:160 minix_get_block+0xd6/0x100 fs/minix/inode.c:379 __block_write_begin_int+0x33a/0x1000 fs/buffer.c:2038 __block_write_begin fs/buffer.c:2088 [inline] block_write_begin+0x58/0x260 fs/buffer.c:2147 minix_write_begin+0x35/0xc0 fs/minix/inode.c:415 generic_perform_write+0x1c9/0x420 mm/filemap.c:3047 __generic_file_write_iter+0x227/0x590 mm/filemap.c:3172 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3200 call_write_iter include/linux/fs.h:1778 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44e/0x630 fs/read_write.c:482 __kernel_write+0xf5/0x330 fs/read_write.c:501 do_acct_process+0xb49/0xf60 kernel/acct.c:520 slow_acct_process kernel/acct.c:579 [inline] acct_process+0x38a/0x422 kernel/acct.c:605 do_exit+0x1728/0x2ae0 kernel/exit.c:848 do_group_exit+0x100/0x2e0 kernel/exit.c:955 SYSC_exit_group kernel/exit.c:966 [inline] SyS_exit_group+0x19/0x20 kernel/exit.c:964 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x443e28 RSP: 002b:00007ffcab085fd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000443e28 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00000000004c4af0 R08: 00000000000000e7 R09: ffffffffffffffd4 R10: 00007ffcab085ef0 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006d7180 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 6284: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc.part.0+0x4f/0xd0 mm/kasan/kasan.c:551 kmem_cache_alloc+0x124/0x3c0 mm/slab.c:3552 getname_flags+0xc8/0x550 fs/namei.c:138 do_sys_open+0x202/0x3e0 fs/open.c:1075 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb Freed by task 6284: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xaf/0x190 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kmem_cache_free+0x7c/0x2b0 mm/slab.c:3758 putname+0xcd/0x110 fs/namei.c:259 do_sys_open+0x233/0x3e0 fs/open.c:1090 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb The buggy address belongs to the object at ffff88808f8a0580 which belongs to the cache names_cache of size 4096 The buggy address is located 1014 bytes to the left of 4096-byte region [ffff88808f8a0580, ffff88808f8a1580) The buggy address belongs to the page: page:ffffea00023e2800 count:1 mapcount:0 mapping:ffff88808f8a0580 index:0x0 compound_mapcount: 0 flags: 0xfffe0000008100(slab|head) raw: 00fffe0000008100 ffff88808f8a0580 0000000000000000 0000000100000001 raw: ffffea00023e47a0 ffffea00023e2920 ffff8880aa9dacc0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88808f8a0080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88808f8a0100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88808f8a0180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88808f8a0200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88808f8a0280: 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020/07/12 17:59 | linux-4.14.y | b850307b279c | 115e1930 | .config | console log | report | syz | C | ci2-linux-4-14 | |||
| 2020/07/12 17:43 | linux-4.14.y | b850307b279c | 115e1930 | .config | console log | report | ci2-linux-4-14 |