Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.348542] ================================================================== [ 15.348878] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 15.349144] Write of size 16 at addr fff00000c3ef7d80 by task kunit_try_catch/166 [ 15.349215] [ 15.349587] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.349981] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.350034] Hardware name: linux,dummy-virt (DT) [ 15.350135] Call trace: [ 15.350198] show_stack+0x20/0x38 (C) [ 15.350615] dump_stack_lvl+0x8c/0xd0 [ 15.350902] print_report+0x118/0x5d0 [ 15.350998] kasan_report+0xdc/0x128 [ 15.351151] __asan_report_store16_noabort+0x20/0x30 [ 15.351300] kmalloc_oob_16+0x3a0/0x3f8 [ 15.351431] kunit_try_run_case+0x170/0x3f0 [ 15.351624] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.351935] kthread+0x328/0x630 [ 15.352152] ret_from_fork+0x10/0x20 [ 15.352349] [ 15.352439] Allocated by task 166: [ 15.352542] kasan_save_stack+0x3c/0x68 [ 15.352641] kasan_save_track+0x20/0x40 [ 15.352780] kasan_save_alloc_info+0x40/0x58 [ 15.352821] __kasan_kmalloc+0xd4/0xd8 [ 15.353026] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.353244] kmalloc_oob_16+0xb4/0x3f8 [ 15.353378] kunit_try_run_case+0x170/0x3f0 [ 15.353438] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.353810] kthread+0x328/0x630 [ 15.353929] ret_from_fork+0x10/0x20 [ 15.354035] [ 15.354138] The buggy address belongs to the object at fff00000c3ef7d80 [ 15.354138] which belongs to the cache kmalloc-16 of size 16 [ 15.354410] The buggy address is located 0 bytes inside of [ 15.354410] allocated 13-byte region [fff00000c3ef7d80, fff00000c3ef7d8d) [ 15.354732] [ 15.354825] The buggy address belongs to the physical page: [ 15.355047] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ef7 [ 15.355145] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.355511] page_type: f5(slab) [ 15.355566] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.356087] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.356178] page dumped because: kasan: bad access detected [ 15.356378] [ 15.356530] Memory state around the buggy address: [ 15.356587] fff00000c3ef7c80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 15.356939] fff00000c3ef7d00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 15.357004] >fff00000c3ef7d80: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 15.357129] ^ [ 15.357204] fff00000c3ef7e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.357500] fff00000c3ef7e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.357619] ==================================================================
[ 12.163561] ================================================================== [ 12.165142] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.166410] Write of size 16 at addr ffff88810216cb00 by task kunit_try_catch/185 [ 12.167365] [ 12.167489] CPU: 0 UID: 0 PID: 185 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.167537] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.167548] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.167568] Call Trace: [ 12.167580] <TASK> [ 12.167596] dump_stack_lvl+0x73/0xb0 [ 12.167626] print_report+0xd1/0x610 [ 12.167648] ? __virt_addr_valid+0x1db/0x2d0 [ 12.167672] ? kmalloc_oob_16+0x452/0x4a0 [ 12.167692] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.167715] ? kmalloc_oob_16+0x452/0x4a0 [ 12.167735] kasan_report+0x141/0x180 [ 12.167757] ? kmalloc_oob_16+0x452/0x4a0 [ 12.167781] __asan_report_store16_noabort+0x1b/0x30 [ 12.167806] kmalloc_oob_16+0x452/0x4a0 [ 12.167827] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.167848] ? __schedule+0x10cc/0x2b60 [ 12.167870] ? __pfx_read_tsc+0x10/0x10 [ 12.167890] ? ktime_get_ts64+0x86/0x230 [ 12.167914] kunit_try_run_case+0x1a5/0x480 [ 12.167938] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.167960] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.167984] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.168007] ? __kthread_parkme+0x82/0x180 [ 12.168027] ? preempt_count_sub+0x50/0x80 [ 12.168051] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.168075] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.168099] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.168122] kthread+0x337/0x6f0 [ 12.168141] ? trace_preempt_on+0x20/0xc0 [ 12.168164] ? __pfx_kthread+0x10/0x10 [ 12.168184] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.168204] ? calculate_sigpending+0x7b/0xa0 [ 12.168229] ? __pfx_kthread+0x10/0x10 [ 12.168261] ret_from_fork+0x116/0x1d0 [ 12.168289] ? __pfx_kthread+0x10/0x10 [ 12.168308] ret_from_fork_asm+0x1a/0x30 [ 12.168339] </TASK> [ 12.168349] [ 12.175384] Allocated by task 185: [ 12.175611] kasan_save_stack+0x45/0x70 [ 12.175774] kasan_save_track+0x18/0x40 [ 12.175957] kasan_save_alloc_info+0x3b/0x50 [ 12.176152] __kasan_kmalloc+0xb7/0xc0 [ 12.176379] __kmalloc_cache_noprof+0x189/0x420 [ 12.176572] kmalloc_oob_16+0xa8/0x4a0 [ 12.176868] kunit_try_run_case+0x1a5/0x480 [ 12.177179] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.177383] kthread+0x337/0x6f0 [ 12.177664] ret_from_fork+0x116/0x1d0 [ 12.177825] ret_from_fork_asm+0x1a/0x30 [ 12.178007] [ 12.178103] The buggy address belongs to the object at ffff88810216cb00 [ 12.178103] which belongs to the cache kmalloc-16 of size 16 [ 12.178630] The buggy address is located 0 bytes inside of [ 12.178630] allocated 13-byte region [ffff88810216cb00, ffff88810216cb0d) [ 12.179012] [ 12.179118] The buggy address belongs to the physical page: [ 12.179384] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10216c [ 12.179756] flags: 0x200000000000000(node=0|zone=2) [ 12.179922] page_type: f5(slab) [ 12.180042] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.180283] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.180612] page dumped because: kasan: bad access detected [ 12.180857] [ 12.180952] Memory state around the buggy address: [ 12.181247] ffff88810216ca00: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 12.181576] ffff88810216ca80: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 12.182008] >ffff88810216cb00: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 12.182347] ^ [ 12.182548] ffff88810216cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.182826] ffff88810216cc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.183207] ==================================================================