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| 🐞 Open [943] 🐞 Fixed [4015] 🐞 Invalid [8863] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KASAN: use-after-free Read in disk_part_iter_next | C | unreliable | 243 | 563d | 651d | 21/24 | fixed on 2021/03/10 01:49 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2021/03/26 08:35 | 18m | tom.leiming@gmail.com | https://github.com/ming1/linux.git v5.12-block-test | report log | |
| 2021/03/24 13:05 | 12m | hch@lst.de | git://git.infradead.org/users/hch/block.git 079274f2cf123f9a85972db1043d689c74c0787f | report log | |
| 2021/03/24 09:49 | 10m | hch@lst.de | git://git.infradead.org/users/hch/block.git part-iter-fix | report log | |
| 2021/03/22 08:51 | 17m | tom.leiming@gmail.com | https://github.com/ming1/linux.git v5.12-block-test | report log | |
| 2021/03/22 07:49 | 10m | dvyukov@google.com | patch | upstream | report log |
| 2021/03/21 21:26 | 12m | bvanassche@acm.org | https://github.com/bvanassche/linux a5f35387ebdc | report log |
================================================================== BUG: KASAN: use-after-free in bdev_nr_sectors include/linux/genhd.h:266 [inline] BUG: KASAN: use-after-free in disk_part_iter_next+0x49d/0x530 block/genhd.c:206 Read of size 8 at addr ffff88803268d0a8 by task syz-executor193/10255 CPU: 0 PID: 10255 Comm: syz-executor193 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416 bdev_nr_sectors include/linux/genhd.h:266 [inline] disk_part_iter_next+0x49d/0x530 block/genhd.c:206 partition_overlaps+0x96/0x200 block/partitions/core.c:425 bdev_add_partition+0x66/0x130 block/partitions/core.c:444 blkpg_do_ioctl+0x2d0/0x340 block/ioctl.c:43 blkpg_ioctl block/ioctl.c:60 [inline] blkdev_ioctl+0x577/0x6d0 block/ioctl.c:548 block_ioctl+0xf9/0x140 fs/block_dev.c:1667 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x445739 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007ffca5947308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445739 RDX: 0000000020000240 RSI: 0000000000001269 RDI: 0000000000000003 RBP: 00007ffca5947380 R08: 000000000000ece4 R09: 000000000000ece4 R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca5947370 R14: 00007ffca5947360 R15: 00007ffca594732c Allocated by task 10192: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:427 [inline] __kasan_slab_alloc+0x75/0x90 mm/kasan/common.c:460 kasan_slab_alloc include/linux/kasan.h:223 [inline] slab_post_alloc_hook mm/slab.h:516 [inline] slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2915 [inline] kmem_cache_alloc+0x155/0x370 mm/slub.c:2920 bdev_alloc_inode+0x18/0x80 fs/block_dev.c:795 alloc_inode+0x61/0x230 fs/inode.c:234 new_inode_pseudo fs/inode.c:928 [inline] new_inode+0x27/0x2f0 fs/inode.c:957 bdev_alloc+0x20/0x2f0 fs/block_dev.c:885 add_partition+0x1ab/0x880 block/partitions/core.c:346 bdev_add_partition+0xb6/0x130 block/partitions/core.c:449 blkpg_do_ioctl+0x2d0/0x340 block/ioctl.c:43 blkpg_ioctl block/ioctl.c:60 [inline] blkdev_ioctl+0x577/0x6d0 block/ioctl.c:548 block_ioctl+0xf9/0x140 fs/block_dev.c:1667 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 0: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357 ____kasan_slab_free mm/kasan/common.c:360 [inline] ____kasan_slab_free mm/kasan/common.c:325 [inline] __kasan_slab_free+0xf5/0x130 mm/kasan/common.c:367 kasan_slab_free include/linux/kasan.h:199 [inline] slab_free_hook mm/slub.c:1562 [inline] slab_free_freelist_hook+0x92/0x210 mm/slub.c:1600 slab_free mm/slub.c:3161 [inline] kmem_cache_free+0x8a/0x740 mm/slub.c:3177 i_callback+0x3f/0x70 fs/inode.c:223 rcu_do_batch kernel/rcu/tree.c:2559 [inline] rcu_core+0x74a/0x12f0 kernel/rcu/tree.c:2794 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 Last potentially related work creation: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_record_aux_stack+0xe5/0x110 mm/kasan/generic.c:345 __call_rcu kernel/rcu/tree.c:3039 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3114 destroy_inode+0x129/0x1b0 fs/inode.c:289 iput_final fs/inode.c:1654 [inline] iput.part.0+0x57e/0x810 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670 disk_part_iter_exit block/genhd.c:235 [inline] disk_part_iter_next+0x9a/0x530 block/genhd.c:202 blk_drop_partitions+0x10a/0x180 block/partitions/core.c:541 bdev_disk_changed+0x238/0x430 fs/block_dev.c:1246 __loop_clr_fd+0x7c7/0xff0 drivers/block/loop.c:1271 lo_release+0x1ac/0x1f0 drivers/block/loop.c:1923 __blkdev_put+0x54e/0x800 fs/block_dev.c:1588 blkdev_put+0x92/0x580 fs/block_dev.c:1641 blkdev_close+0x8c/0xb0 fs/block_dev.c:1649 __fput+0x288/0x920 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_record_aux_stack+0xe5/0x110 mm/kasan/generic.c:345 __call_rcu kernel/rcu/tree.c:3039 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3114 destroy_inode+0x129/0x1b0 fs/inode.c:289 iput_final fs/inode.c:1654 [inline] iput.part.0+0x57e/0x810 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670 disk_part_iter_exit block/genhd.c:235 [inline] disk_part_iter_next+0x9a/0x530 block/genhd.c:202 blk_drop_partitions+0x10a/0x180 block/partitions/core.c:541 bdev_disk_changed+0x238/0x430 fs/block_dev.c:1246 __blkdev_get+0x86c/0xa30 fs/block_dev.c:1350 blkdev_get_by_dev fs/block_dev.c:1454 [inline] blkdev_get_by_dev+0x26c/0x600 fs/block_dev.c:1422 blkdev_reread_part block/ioctl.c:100 [inline] blkdev_common_ioctl+0x137e/0x17e0 block/ioctl.c:508 blkdev_ioctl+0x1ef/0x6d0 block/ioctl.c:577 block_ioctl+0xf9/0x140 fs/block_dev.c:1667 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff88803268d080 which belongs to the cache bdev_cache of size 2792 The buggy address is located 40 bytes inside of 2792-byte region [ffff88803268d080, ffff88803268db68) The buggy address belongs to the page: page:ffffea0000c9a200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32688 head:ffffea0000c9a200 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head) raw: 00fff00000010200 ffffea0005110a00 0000000200000002 ffff8880109bdb40 raw: 0000000000000000 00000000800b000b 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88803268cf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff88803268d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88803268d080: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803268d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803268d180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
| Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ci-upstream-kasan-gce-root | 2021/03/20 20:52 | upstream | 1c273e10bc0c | 17810eae | .config | log | report | syz | C | KASAN: use-after-free Read in disk_part_iter_next | |
| ci-upstream-kasan-gce-root | 2021/03/28 17:11 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/28 12:43 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/28 01:58 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/27 16:13 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/27 10:49 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/27 09:40 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/27 08:06 | upstream | 0f4498cef9f5 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/27 06:52 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/27 03:31 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/27 01:37 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/26 21:38 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/26 18:36 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/26 17:29 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/26 16:26 | upstream | db24726bfefa | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/26 13:53 | upstream | db24726bfefa | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/26 10:57 | upstream | db24726bfefa | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/26 09:32 | upstream | db24726bfefa | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-qemu-upstream | 2021/03/26 05:40 | upstream | 002322402daf | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-qemu-upstream | 2021/03/26 01:24 | upstream | 002322402daf | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/25 20:06 | upstream | e138138003eb | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/25 17:56 | upstream | e138138003eb | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/25 16:06 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/25 09:59 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/25 09:57 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/25 04:49 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/25 03:36 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/25 00:49 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/24 23:37 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/24 22:04 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-selinux-root | 2021/03/24 21:01 | upstream | 4ee998b0ef8b | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/24 19:05 | upstream | 7acac4b3196c | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-smack-root | 2021/03/24 17:54 | upstream | 7acac4b3196c | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/24 17:08 | upstream | 7acac4b3196c | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/24 16:02 | upstream | 7acac4b3196c | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-qemu-upstream | 2021/03/14 05:44 | upstream | 280d542f6ffa | 4a003785 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/04/01 12:22 | linux-next | 931294922e65 | 6a81331a | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/31 22:51 | linux-next | 931294922e65 | 6a81331a | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/30 03:45 | linux-next | 931294922e65 | 6a81331a | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/29 20:13 | linux-next | 931294922e65 | 6a81331a | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/29 18:09 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/29 17:59 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/29 10:57 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/29 09:49 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/28 19:38 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/27 08:39 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/26 19:43 | linux-next | 931294922e65 | a8529b82 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/26 12:58 | linux-next | b4f20b70784a | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/25 23:35 | linux-next | b4f20b70784a | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/25 21:18 | linux-next | b4f20b70784a | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/25 19:21 | linux-next | b4f20b70784a | 6a383ecf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/25 02:18 | linux-next | 20f1b5f9c07c | 607e3baf | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-linux-next-kasan-gce-root | 2021/03/10 10:57 | linux-next | 3aa6f5082286 | 26967e35 | .config | log | report | info | KASAN: use-after-free Read in disk_part_iter_next | ||
| ci-upstream-kasan-gce-root | 2021/03/23 18:52 | upstream | 7acac4b3196c | e613994b | .config | log | report | info | KFENCE: use-after-free in disk_part_iter_next |