Date
Nov. 20, 2024, 6:35 a.m.
Environment | |
---|---|
qemu-x86_64 |
[ 35.790631] ================================================================== [ 35.791936] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x33/0xa0 [ 35.792566] Write of size 121 at addr ffff888101adc700 by task kunit_try_catch/292 [ 35.793406] [ 35.793694] CPU: 0 UID: 0 PID: 292 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 35.794796] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.795313] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 35.796345] Call Trace: [ 35.796657] <TASK> [ 35.797050] dump_stack_lvl+0x73/0xb0 [ 35.797682] print_report+0xd1/0x640 [ 35.798102] ? __virt_addr_valid+0x1db/0x2d0 [ 35.798810] ? kasan_complete_mode_report_info+0x2a/0x200 [ 35.799289] kasan_report+0x102/0x140 [ 35.799675] ? _copy_from_user+0x33/0xa0 [ 35.800605] ? _copy_from_user+0x33/0xa0 [ 35.801004] kasan_check_range+0x10c/0x1c0 [ 35.801363] __kasan_check_write+0x18/0x20 [ 35.801977] _copy_from_user+0x33/0xa0 [ 35.802430] copy_user_test_oob+0x2bf/0x10f0 [ 35.803149] ? __pfx_copy_user_test_oob+0x10/0x10 [ 35.803501] ? finish_task_switch.isra.0+0x153/0x700 [ 35.804363] ? __switch_to+0x5d9/0xf60 [ 35.804873] ? __schedule+0xc3e/0x2790 [ 35.805317] ? __pfx_read_tsc+0x10/0x10 [ 35.805811] ? ktime_get_ts64+0x84/0x230 [ 35.806291] kunit_try_run_case+0x1b3/0x490 [ 35.807056] ? __pfx_kunit_try_run_case+0x10/0x10 [ 35.807475] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 35.808363] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 35.808872] ? __kthread_parkme+0x82/0x160 [ 35.809396] ? preempt_count_sub+0x50/0x80 [ 35.810178] ? __pfx_kunit_try_run_case+0x10/0x10 [ 35.811065] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 35.811572] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 35.812432] kthread+0x257/0x310 [ 35.812932] ? __pfx_kthread+0x10/0x10 [ 35.813283] ret_from_fork+0x41/0x80 [ 35.813677] ? __pfx_kthread+0x10/0x10 [ 35.814971] ret_from_fork_asm+0x1a/0x30 [ 35.815371] </TASK> [ 35.815866] [ 35.816050] Allocated by task 292: [ 35.816837] kasan_save_stack+0x3d/0x60 [ 35.817119] kasan_save_track+0x18/0x40 [ 35.818370] kasan_save_alloc_info+0x3b/0x50 [ 35.818798] __kasan_kmalloc+0xb7/0xc0 [ 35.818985] __kmalloc_noprof+0x1c4/0x500 [ 35.819172] kunit_kmalloc_array+0x25/0x60 [ 35.819360] copy_user_test_oob+0xac/0x10f0 [ 35.819553] kunit_try_run_case+0x1b3/0x490 [ 35.819917] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 35.820264] kthread+0x257/0x310 [ 35.821407] ret_from_fork+0x41/0x80 [ 35.822064] ret_from_fork_asm+0x1a/0x30 [ 35.822721] [ 35.823202] The buggy address belongs to the object at ffff888101adc700 [ 35.823202] which belongs to the cache kmalloc-128 of size 128 [ 35.824590] The buggy address is located 0 bytes inside of [ 35.824590] allocated 120-byte region [ffff888101adc700, ffff888101adc778) [ 35.825858] [ 35.826246] The buggy address belongs to the physical page: [ 35.826659] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101adc [ 35.827407] flags: 0x200000000000000(node=0|zone=2) [ 35.827919] page_type: f5(slab) [ 35.828862] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 35.829624] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 35.830655] page dumped because: kasan: bad access detected [ 35.831491] [ 35.831661] Memory state around the buggy address: [ 35.832494] ffff888101adc600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.833676] ffff888101adc680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.834416] >ffff888101adc700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 35.835141] ^ [ 35.835701] ffff888101adc780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.836694] ffff888101adc800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.837430] ==================================================================