Date
Nov. 20, 2024, 6:35 a.m.
Environment | |
---|---|
qemu-x86_64 |
[ 35.843027] ================================================================== [ 35.844094] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x4a/0x70 [ 35.844736] Read of size 121 at addr ffff888101adc700 by task kunit_try_catch/292 [ 35.845157] [ 35.845415] CPU: 0 UID: 0 PID: 292 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 35.846378] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.846672] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 35.847348] Call Trace: [ 35.847686] <TASK> [ 35.848073] dump_stack_lvl+0x73/0xb0 [ 35.848914] print_report+0xd1/0x640 [ 35.849230] ? __virt_addr_valid+0x1db/0x2d0 [ 35.849964] ? kasan_complete_mode_report_info+0x2a/0x200 [ 35.850433] kasan_report+0x102/0x140 [ 35.850751] ? _copy_to_user+0x4a/0x70 [ 35.851050] ? _copy_to_user+0x4a/0x70 [ 35.851593] kasan_check_range+0x10c/0x1c0 [ 35.852135] __kasan_check_read+0x15/0x20 [ 35.852520] _copy_to_user+0x4a/0x70 [ 35.853361] copy_user_test_oob+0x365/0x10f0 [ 35.853975] ? __pfx_copy_user_test_oob+0x10/0x10 [ 35.854984] ? finish_task_switch.isra.0+0x153/0x700 [ 35.855874] ? __switch_to+0x5d9/0xf60 [ 35.856347] ? __schedule+0xc3e/0x2790 [ 35.856905] ? __pfx_read_tsc+0x10/0x10 [ 35.857325] ? ktime_get_ts64+0x84/0x230 [ 35.857811] kunit_try_run_case+0x1b3/0x490 [ 35.858287] ? __pfx_kunit_try_run_case+0x10/0x10 [ 35.859003] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 35.859478] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 35.860185] ? __kthread_parkme+0x82/0x160 [ 35.860686] ? preempt_count_sub+0x50/0x80 [ 35.861258] ? __pfx_kunit_try_run_case+0x10/0x10 [ 35.862008] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 35.862733] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 35.863303] kthread+0x257/0x310 [ 35.863884] ? __pfx_kthread+0x10/0x10 [ 35.864363] ret_from_fork+0x41/0x80 [ 35.865005] ? __pfx_kthread+0x10/0x10 [ 35.865441] ret_from_fork_asm+0x1a/0x30 [ 35.866009] </TASK> [ 35.866401] [ 35.866690] Allocated by task 292: [ 35.867148] kasan_save_stack+0x3d/0x60 [ 35.867499] kasan_save_track+0x18/0x40 [ 35.868069] kasan_save_alloc_info+0x3b/0x50 [ 35.868469] __kasan_kmalloc+0xb7/0xc0 [ 35.869137] __kmalloc_noprof+0x1c4/0x500 [ 35.869503] kunit_kmalloc_array+0x25/0x60 [ 35.870238] copy_user_test_oob+0xac/0x10f0 [ 35.870691] kunit_try_run_case+0x1b3/0x490 [ 35.871206] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 35.872060] kthread+0x257/0x310 [ 35.872490] ret_from_fork+0x41/0x80 [ 35.873056] ret_from_fork_asm+0x1a/0x30 [ 35.873575] [ 35.873854] The buggy address belongs to the object at ffff888101adc700 [ 35.873854] which belongs to the cache kmalloc-128 of size 128 [ 35.875128] The buggy address is located 0 bytes inside of [ 35.875128] allocated 120-byte region [ffff888101adc700, ffff888101adc778) [ 35.876437] [ 35.876676] The buggy address belongs to the physical page: [ 35.877239] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101adc [ 35.878155] flags: 0x200000000000000(node=0|zone=2) [ 35.878669] page_type: f5(slab) [ 35.879009] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 35.880091] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 35.880760] page dumped because: kasan: bad access detected [ 35.881533] [ 35.881760] Memory state around the buggy address: [ 35.882478] ffff888101adc600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.883733] ffff888101adc680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.884519] >ffff888101adc700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 35.885362] ^ [ 35.886193] ffff888101adc780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.886844] ffff888101adc800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.887757] ==================================================================