Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.402873] ================================================================== [ 15.402932] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 15.403229] Write of size 2 at addr fff00000c3f17d77 by task kunit_try_catch/172 [ 15.403682] [ 15.403859] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.404003] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.404063] Hardware name: linux,dummy-virt (DT) [ 15.404097] Call trace: [ 15.404147] show_stack+0x20/0x38 (C) [ 15.404207] dump_stack_lvl+0x8c/0xd0 [ 15.404528] print_report+0x118/0x5d0 [ 15.404667] kasan_report+0xdc/0x128 [ 15.404729] kasan_check_range+0x100/0x1a8 [ 15.405013] __asan_memset+0x34/0x78 [ 15.405074] kmalloc_oob_memset_2+0x150/0x2f8 [ 15.405305] kunit_try_run_case+0x170/0x3f0 [ 15.405480] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.405927] kthread+0x328/0x630 [ 15.406038] ret_from_fork+0x10/0x20 [ 15.406116] [ 15.406135] Allocated by task 172: [ 15.406164] kasan_save_stack+0x3c/0x68 [ 15.406204] kasan_save_track+0x20/0x40 [ 15.406242] kasan_save_alloc_info+0x40/0x58 [ 15.406301] __kasan_kmalloc+0xd4/0xd8 [ 15.406360] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.406407] kmalloc_oob_memset_2+0xb0/0x2f8 [ 15.406444] kunit_try_run_case+0x170/0x3f0 [ 15.406490] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.406532] kthread+0x328/0x630 [ 15.406564] ret_from_fork+0x10/0x20 [ 15.406615] [ 15.406634] The buggy address belongs to the object at fff00000c3f17d00 [ 15.406634] which belongs to the cache kmalloc-128 of size 128 [ 15.406704] The buggy address is located 119 bytes inside of [ 15.406704] allocated 120-byte region [fff00000c3f17d00, fff00000c3f17d78) [ 15.406766] [ 15.406786] The buggy address belongs to the physical page: [ 15.406816] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f17 [ 15.406867] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.406912] page_type: f5(slab) [ 15.406950] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.407007] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.407046] page dumped because: kasan: bad access detected [ 15.407076] [ 15.407093] Memory state around the buggy address: [ 15.407131] fff00000c3f17c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.407173] fff00000c3f17c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.407222] >fff00000c3f17d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.407258] ^ [ 15.407296] fff00000c3f17d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.407345] fff00000c3f17e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.407382] ==================================================================
[ 12.251698] ================================================================== [ 12.252209] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.252838] Write of size 2 at addr ffff8881029ce277 by task kunit_try_catch/191 [ 12.253338] [ 12.253457] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.253511] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.253522] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.253541] Call Trace: [ 12.253551] <TASK> [ 12.253564] dump_stack_lvl+0x73/0xb0 [ 12.253592] print_report+0xd1/0x610 [ 12.253613] ? __virt_addr_valid+0x1db/0x2d0 [ 12.253634] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.253654] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.253676] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.253697] kasan_report+0x141/0x180 [ 12.253719] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.253744] kasan_check_range+0x10c/0x1c0 [ 12.253766] __asan_memset+0x27/0x50 [ 12.253785] kmalloc_oob_memset_2+0x166/0x330 [ 12.253816] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.253838] ? __schedule+0x10cc/0x2b60 [ 12.253860] ? __pfx_read_tsc+0x10/0x10 [ 12.253889] ? ktime_get_ts64+0x86/0x230 [ 12.253913] kunit_try_run_case+0x1a5/0x480 [ 12.253935] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.253956] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.253980] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.254003] ? __kthread_parkme+0x82/0x180 [ 12.254069] ? preempt_count_sub+0x50/0x80 [ 12.254092] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.254114] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.254138] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.254161] kthread+0x337/0x6f0 [ 12.254179] ? trace_preempt_on+0x20/0xc0 [ 12.254200] ? __pfx_kthread+0x10/0x10 [ 12.254220] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.254240] ? calculate_sigpending+0x7b/0xa0 [ 12.254263] ? __pfx_kthread+0x10/0x10 [ 12.254295] ret_from_fork+0x116/0x1d0 [ 12.254312] ? __pfx_kthread+0x10/0x10 [ 12.254331] ret_from_fork_asm+0x1a/0x30 [ 12.254360] </TASK> [ 12.254369] [ 12.262240] Allocated by task 191: [ 12.262456] kasan_save_stack+0x45/0x70 [ 12.262661] kasan_save_track+0x18/0x40 [ 12.262854] kasan_save_alloc_info+0x3b/0x50 [ 12.263205] __kasan_kmalloc+0xb7/0xc0 [ 12.263634] __kmalloc_cache_noprof+0x189/0x420 [ 12.263829] kmalloc_oob_memset_2+0xac/0x330 [ 12.264158] kunit_try_run_case+0x1a5/0x480 [ 12.264368] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.264678] kthread+0x337/0x6f0 [ 12.264855] ret_from_fork+0x116/0x1d0 [ 12.265031] ret_from_fork_asm+0x1a/0x30 [ 12.265168] [ 12.265239] The buggy address belongs to the object at ffff8881029ce200 [ 12.265239] which belongs to the cache kmalloc-128 of size 128 [ 12.265611] The buggy address is located 119 bytes inside of [ 12.265611] allocated 120-byte region [ffff8881029ce200, ffff8881029ce278) [ 12.266576] [ 12.266680] The buggy address belongs to the physical page: [ 12.266945] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ce [ 12.267454] flags: 0x200000000000000(node=0|zone=2) [ 12.267663] page_type: f5(slab) [ 12.267870] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.268451] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.268685] page dumped because: kasan: bad access detected [ 12.268862] [ 12.268976] Memory state around the buggy address: [ 12.269269] ffff8881029ce100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.269936] ffff8881029ce180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.270373] >ffff8881029ce200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.270669] ^ [ 12.270906] ffff8881029ce280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.271381] ffff8881029ce300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.271752] ==================================================================