Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] KASAN: use-after-free Read in bio_poll | 5 (7) | 2022/05/19 11:01 |
syzbot |
sign-in | mailing list | source | docs |
Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] KASAN: use-after-free Read in bio_poll | 5 (7) | 2022/05/19 11:01 |
================================================================== BUG: KASAN: use-after-free in bio_poll+0x41/0x290 block/blk-core.c:941 Read of size 8 at addr ffff88807f015508 by task syz-executor237/3600 CPU: 0 PID: 3600 Comm: syz-executor237 Not tainted 5.18.0-rc6-syzkaller #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+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x65/0x4b0 mm/kasan/report.c:313 print_report+0xf4/0x210 mm/kasan/report.c:429 kasan_report+0xfb/0x130 mm/kasan/report.c:491 bio_poll+0x41/0x290 block/blk-core.c:941 __iomap_dio_rw+0x1a95/0x1ea0 fs/iomap/direct-io.c:658 iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:681 ext4_dio_write_iter fs/ext4/file.c:566 [inline] ext4_file_write_iter+0x14fc/0x1960 fs/ext4/file.c:677 do_iter_readv_writev+0x499/0x650 do_iter_write+0x1f1/0x7a0 fs/read_write.c:852 vfs_writev fs/read_write.c:925 [inline] do_pwritev+0x219/0x360 fs/read_write.c:1022 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f2d8b046e69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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:00007ffe6399e988 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 000000000000a252 RCX: 00007f2d8b046e69 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000001400 R11: 0000000000000246 R12: 00007ffe6399e9ac R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 </TASK> The buggy address belongs to the physical page: page:ffffea0001fc0540 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f015 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0001eccac8 ffff8880b9b40038 0000000000000000 raw: 0000000000000000 00000000000c0000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Unmovable, gfp_mask 0x92800(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_NOMEMALLOC), pid 2931, tgid 2931 (jbd2/sda1-8), ts 18049756371, free_ts 41846633810 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0x72e/0x7a0 mm/page_alloc.c:4182 __alloc_pages+0x26c/0x5f0 mm/page_alloc.c:5408 alloc_slab_page+0x70/0xf0 mm/slub.c:1799 allocate_slab+0x5e/0x560 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x41e/0xcd0 mm/slub.c:3005 __slab_alloc mm/slub.c:3092 [inline] slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x246/0x2f0 mm/slub.c:3242 mempool_alloc+0x17d/0x5c0 mm/mempool.c:392 bio_alloc_bioset+0x144/0xce0 block/bio.c:492 bio_alloc include/linux/bio.h:426 [inline] submit_bh_wbc+0x262/0x4e0 fs/buffer.c:3025 submit_bh+0x1e/0x30 fs/buffer.c:3051 jbd2_journal_commit_transaction+0x297d/0x5a80 fs/jbd2/commit.c:764 kjournald2+0x4c4/0x950 fs/jbd2/journal.c:213 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1356 [inline] free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1406 free_unref_page_prepare mm/page_alloc.c:3328 [inline] free_unref_page+0x7d/0x390 mm/page_alloc.c:3423 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xa0c/0x16d0 kernel/rcu/tree.c:2786 __do_softirq+0x382/0x793 kernel/softirq.c:558 Memory state around the buggy address: ffff88807f015400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807f015480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88807f015500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807f015580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807f015600: 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/05/09 17:20 | upstream | c5eb0a61238d | 8b277b8e | .config | strace log | report | syz | C | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in bio_poll | ||
2022/05/09 16:13 | upstream | c5eb0a61238d | 8b277b8e | .config | strace log | report | syz | C | ci-upstream-kasan-gce-root | KASAN: use-after-free Read in bio_poll | ||
2022/05/09 10:57 | upstream | c5eb0a61238d | 8b277b8e | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Read in bio_poll | |||
2022/01/09 22:49 | upstream | 4634129ad9fd | 2ca0d385 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in bio_poll | |||
2022/05/09 14:57 | upstream | c5eb0a61238d | 8b277b8e | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | general protection fault in bio_poll | |||
2022/02/28 23:48 | upstream | 7e57714cd0ad | 45a13a73 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KFENCE: use-after-free in bio_poll |