Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.176804] ================================================================== [ 15.176870] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 15.176922] Write of size 16 at addr fff00000c5eb7bc0 by task kunit_try_catch/166 [ 15.176979] [ 15.177127] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.177309] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.177442] Hardware name: linux,dummy-virt (DT) [ 15.177475] Call trace: [ 15.177497] show_stack+0x20/0x38 (C) [ 15.177553] dump_stack_lvl+0x8c/0xd0 [ 15.178179] print_report+0x118/0x5d0 [ 15.178696] kasan_report+0xdc/0x128 [ 15.178745] __asan_report_store16_noabort+0x20/0x30 [ 15.178796] kmalloc_oob_16+0x3a0/0x3f8 [ 15.178839] kunit_try_run_case+0x170/0x3f0 [ 15.178918] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.178971] kthread+0x328/0x630 [ 15.179073] ret_from_fork+0x10/0x20 [ 15.179120] [ 15.179138] Allocated by task 166: [ 15.179166] kasan_save_stack+0x3c/0x68 [ 15.179259] kasan_save_track+0x20/0x40 [ 15.179296] kasan_save_alloc_info+0x40/0x58 [ 15.179588] __kasan_kmalloc+0xd4/0xd8 [ 15.179630] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.179667] kmalloc_oob_16+0xb4/0x3f8 [ 15.179710] kunit_try_run_case+0x170/0x3f0 [ 15.179746] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.179820] kthread+0x328/0x630 [ 15.179919] ret_from_fork+0x10/0x20 [ 15.179988] [ 15.180051] The buggy address belongs to the object at fff00000c5eb7bc0 [ 15.180051] which belongs to the cache kmalloc-16 of size 16 [ 15.180141] The buggy address is located 0 bytes inside of [ 15.180141] allocated 13-byte region [fff00000c5eb7bc0, fff00000c5eb7bcd) [ 15.180201] [ 15.180221] The buggy address belongs to the physical page: [ 15.180251] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105eb7 [ 15.180302] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.180392] page_type: f5(slab) [ 15.180431] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.180492] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.180532] page dumped because: kasan: bad access detected [ 15.180563] [ 15.180609] Memory state around the buggy address: [ 15.180645] fff00000c5eb7a80: fa fb fc fc fa fb fc fc 00 01 fc fc 00 01 fc fc [ 15.180762] fff00000c5eb7b00: fa fb fc fc 00 01 fc fc 00 01 fc fc fa fb fc fc [ 15.180881] >fff00000c5eb7b80: fa fb fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc [ 15.181006] ^ [ 15.181095] fff00000c5eb7c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.181181] fff00000c5eb7c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.181218] ==================================================================
[ 12.011062] ================================================================== [ 12.011636] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.012145] Write of size 16 at addr ffff888101df6ce0 by task kunit_try_catch/183 [ 12.012585] [ 12.012944] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.012999] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.013020] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.013042] Call Trace: [ 12.013053] <TASK> [ 12.013069] dump_stack_lvl+0x73/0xb0 [ 12.013100] print_report+0xd1/0x610 [ 12.013123] ? __virt_addr_valid+0x1db/0x2d0 [ 12.013146] ? kmalloc_oob_16+0x452/0x4a0 [ 12.013166] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.013186] ? kmalloc_oob_16+0x452/0x4a0 [ 12.013206] kasan_report+0x141/0x180 [ 12.013227] ? kmalloc_oob_16+0x452/0x4a0 [ 12.013252] __asan_report_store16_noabort+0x1b/0x30 [ 12.013276] kmalloc_oob_16+0x452/0x4a0 [ 12.013296] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.013316] ? __schedule+0x10cc/0x2b60 [ 12.013338] ? __pfx_read_tsc+0x10/0x10 [ 12.013359] ? ktime_get_ts64+0x86/0x230 [ 12.013383] kunit_try_run_case+0x1a5/0x480 [ 12.013407] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.013429] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.013461] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.013482] ? __kthread_parkme+0x82/0x180 [ 12.013502] ? preempt_count_sub+0x50/0x80 [ 12.013525] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.013548] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.013570] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.013592] kthread+0x337/0x6f0 [ 12.013610] ? trace_preempt_on+0x20/0xc0 [ 12.013632] ? __pfx_kthread+0x10/0x10 [ 12.013652] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.013671] ? calculate_sigpending+0x7b/0xa0 [ 12.013695] ? __pfx_kthread+0x10/0x10 [ 12.013715] ret_from_fork+0x116/0x1d0 [ 12.013732] ? __pfx_kthread+0x10/0x10 [ 12.013751] ret_from_fork_asm+0x1a/0x30 [ 12.013781] </TASK> [ 12.013791] [ 12.024240] Allocated by task 183: [ 12.024394] kasan_save_stack+0x45/0x70 [ 12.024605] kasan_save_track+0x18/0x40 [ 12.025300] kasan_save_alloc_info+0x3b/0x50 [ 12.025464] __kasan_kmalloc+0xb7/0xc0 [ 12.026025] __kmalloc_cache_noprof+0x189/0x420 [ 12.026425] kmalloc_oob_16+0xa8/0x4a0 [ 12.026627] kunit_try_run_case+0x1a5/0x480 [ 12.026825] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.027075] kthread+0x337/0x6f0 [ 12.027231] ret_from_fork+0x116/0x1d0 [ 12.027407] ret_from_fork_asm+0x1a/0x30 [ 12.027979] [ 12.028074] The buggy address belongs to the object at ffff888101df6ce0 [ 12.028074] which belongs to the cache kmalloc-16 of size 16 [ 12.028917] The buggy address is located 0 bytes inside of [ 12.028917] allocated 13-byte region [ffff888101df6ce0, ffff888101df6ced) [ 12.029708] [ 12.029820] The buggy address belongs to the physical page: [ 12.030042] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101df6 [ 12.030821] flags: 0x200000000000000(node=0|zone=2) [ 12.031020] page_type: f5(slab) [ 12.031577] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.031891] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.032451] page dumped because: kasan: bad access detected [ 12.032829] [ 12.032954] Memory state around the buggy address: [ 12.033429] ffff888101df6b80: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc [ 12.033908] ffff888101df6c00: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 12.034254] >ffff888101df6c80: fa fb fc fc fa fb fc fc 00 05 fc fc 00 05 fc fc [ 12.034812] ^ [ 12.035115] ffff888101df6d00: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.035687] ffff888101df6d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.036120] ==================================================================