diff options
| author | Chih-Yen Chang <cc85nod@gmail.com> | 2023-05-14 12:05:05 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-05-16 10:26:14 -0500 |
| commit | 02f76c401d17e409ed45bf7887148fcc22c93c85 (patch) | |
| tree | caf94419c5a1a7d8d5061b7398b6a6875e8c10ec /tools/testing/selftests/bpf/prog_tests | |
| parent | f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6 (diff) | |
ksmbd: fix global-out-of-bounds in smb2_find_context_vals
Add tag_len argument in smb2_find_context_vals() to avoid out-of-bound
read when create_context's name_len is larger than tag length.
[ 7.995411] ==================================================================
[ 7.995866] BUG: KASAN: global-out-of-bounds in memcmp+0x83/0xa0
[ 7.996248] Read of size 8 at addr ffffffff8258d940 by task kworker/0:0/7
...
[ 7.998191] Call Trace:
[ 7.998358] <TASK>
[ 7.998503] dump_stack_lvl+0x33/0x50
[ 7.998743] print_report+0xcc/0x620
[ 7.999458] kasan_report+0xae/0xe0
[ 7.999895] kasan_check_range+0x35/0x1b0
[ 8.000152] memcmp+0x83/0xa0
[ 8.000347] smb2_find_context_vals+0xf7/0x1e0
[ 8.000635] smb2_open+0x1df2/0x43a0
[ 8.006398] handle_ksmbd_work+0x274/0x810
[ 8.006666] process_one_work+0x419/0x760
[ 8.006922] worker_thread+0x2a2/0x6f0
[ 8.007429] kthread+0x160/0x190
[ 8.007946] ret_from_fork+0x1f/0x30
[ 8.008181] </TASK>
Cc: stable@vger.kernel.org
Signed-off-by: Chih-Yen Chang <cc85nod@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
0 files changed, 0 insertions, 0 deletions