syzbot |
sign-in | mailing list | source | docs |
| 🐞 Open [568] 🐞 Fixed [66] 🐞 Invalid [207] ⬇ Missing Backports [39] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes | 💬 Send us feedback |
| Date | Name | Commit | Repro | Result |
|---|---|---|---|---|
| 2023/08/03 | linux-6.1.y (ToT) | 52a953d0934b | C | [report] KASAN: null-ptr-deref Write in get_block |
| 2023/06/19 | upstream (ToT) | 45a3e24f65e9 | C | [report] KASAN: null-ptr-deref Write in get_block |
| 2023/08/03 | upstream (ToT) | ec351c8f2e62 | C | Didn't crash |
| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KASAN: null-ptr-deref Write in get_block (2) fs | C | error | 11 | 311d | 345d | 23/26 | fixed on 2023/09/28 17:51 | |
| upstream | KASAN: null-ptr-deref Write in get_block fs | C | done | 101 | 1389d | 1502d | 15/26 | fixed on 2020/09/16 22:51 | |
| linux-5.15 | KASAN: null-ptr-deref Write in get_block origin:upstream missing-backport | C | done | 2 | 274d | 320d | 3/3 | fixed on 2023/10/03 00:08 | |
| linux-4.14 | BUG: unable to handle kernel NULL pointer dereference in get_block (2) | C | 1 | 427d | 509d | 0/1 | upstream: reported C repro on 2022/12/09 08:52 | ||
| upstream | KASAN: slab-out-of-bounds Read in get_block (2) fs | 1 | 479d | 479d | 0/26 | auto-obsoleted due to no activity on 2023/05/09 01:15 |
loop0: detected capacity change from 0 to 128 VFS: Found a Xenix FS (block size = 512) on device loop0 sysv_free_block: trying to free block not in datazone ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:102 [inline] BUG: KASAN: null-ptr-deref in test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] BUG: KASAN: null-ptr-deref in trylock_buffer include/linux/buffer_head.h:390 [inline] BUG: KASAN: null-ptr-deref in lock_buffer include/linux/buffer_head.h:396 [inline] BUG: KASAN: null-ptr-deref in alloc_branch fs/sysv/itree.c:148 [inline] BUG: KASAN: null-ptr-deref in get_block+0x563/0x1690 fs/sysv/itree.c:251 Write of size 8 at addr 0000000000000000 by task syz-executor347/3543 CPU: 1 PID: 3543 Comm: syz-executor347 Not tainted 6.1.34-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_report+0xe6/0x4f0 mm/kasan/report.c:398 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:102 [inline] test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] trylock_buffer include/linux/buffer_head.h:390 [inline] lock_buffer include/linux/buffer_head.h:396 [inline] alloc_branch fs/sysv/itree.c:148 [inline] get_block+0x563/0x1690 fs/sysv/itree.c:251 __block_write_begin_int+0x544/0x1a30 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x1f0 fs/buffer.c:2102 sysv_write_begin+0x2d/0x60 fs/sysv/itree.c:485 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3754 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3882 generic_file_write_iter+0xab/0x310 mm/filemap.c:3914 do_iter_write+0x6e6/0xc50 fs/read_write.c:861 vfs_writev fs/read_write.c:934 [inline] do_pwritev+0x216/0x360 fs/read_write.c:1031 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff96ee68b29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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:00007fff64f19f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000128 RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007ff96ee68b29 RDX: 0000000000000005 RSI: 0000000020000480 RDI: 0000000000000004 RBP: 00007ff96ee28160 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000007fff R11: 0000000000000246 R12: 00007ff96ee281f0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/06/19 07:40 | linux-6.1.y | ca87e77a2ef8 | f3921d4d | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | KASAN: null-ptr-deref Write in get_block | |
| 2023/06/29 06:01 | linux-6.1.y | a1c449d00ff8 | ca69c785 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: null-ptr-deref Write in get_block | ||
| 2023/06/29 05:53 | linux-6.1.y | a1c449d00ff8 | ca69c785 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: null-ptr-deref Write in get_block | ||
| 2023/06/25 15:58 | linux-6.1.y | e84a4e368abe | 79782afc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | KASAN: null-ptr-deref Write in get_block |