Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.353079] ================================================================== [ 29.353144] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 29.353201] Write of size 2 at addr fff00000c57d4d77 by task kunit_try_catch/204 [ 29.354412] [ 29.355009] CPU: 0 UID: 0 PID: 204 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 29.355237] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.355315] Hardware name: linux,dummy-virt (DT) [ 29.355529] Call trace: [ 29.355556] show_stack+0x20/0x38 (C) [ 29.355611] dump_stack_lvl+0x8c/0xd0 [ 29.356324] print_report+0x118/0x5d0 [ 29.356562] kasan_report+0xdc/0x128 [ 29.357100] kasan_check_range+0x100/0x1a8 [ 29.357299] __asan_memset+0x34/0x78 [ 29.357357] kmalloc_oob_memset_2+0x150/0x2f8 [ 29.358035] kunit_try_run_case+0x170/0x3f0 [ 29.358113] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.358632] kthread+0x328/0x630 [ 29.358684] ret_from_fork+0x10/0x20 [ 29.358734] [ 29.358753] Allocated by task 204: [ 29.358783] kasan_save_stack+0x3c/0x68 [ 29.359709] kasan_save_track+0x20/0x40 [ 29.360038] kasan_save_alloc_info+0x40/0x58 [ 29.360300] __kasan_kmalloc+0xd4/0xd8 [ 29.360801] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.361122] kmalloc_oob_memset_2+0xb0/0x2f8 [ 29.361164] kunit_try_run_case+0x170/0x3f0 [ 29.361203] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.361246] kthread+0x328/0x630 [ 29.361279] ret_from_fork+0x10/0x20 [ 29.361315] [ 29.361335] The buggy address belongs to the object at fff00000c57d4d00 [ 29.361335] which belongs to the cache kmalloc-128 of size 128 [ 29.362617] The buggy address is located 119 bytes inside of [ 29.362617] allocated 120-byte region [fff00000c57d4d00, fff00000c57d4d78) [ 29.363050] [ 29.363409] The buggy address belongs to the physical page: [ 29.363590] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1057d4 [ 29.363812] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.363862] page_type: f5(slab) [ 29.364117] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.364167] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.364206] page dumped because: kasan: bad access detected [ 29.364492] [ 29.364894] Memory state around the buggy address: [ 29.365238] fff00000c57d4c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.365514] fff00000c57d4c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.365782] >fff00000c57d4d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.365923] ^ [ 29.366074] fff00000c57d4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.366121] fff00000c57d4e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.366158] ==================================================================
[ 24.186655] ================================================================== [ 24.187471] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 24.187840] Write of size 2 at addr ffff8881058c1577 by task kunit_try_catch/222 [ 24.188363] [ 24.188464] CPU: 0 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 24.188580] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 24.188594] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.188615] Call Trace: [ 24.188628] <TASK> [ 24.188648] dump_stack_lvl+0x73/0xb0 [ 24.188688] print_report+0xd1/0x610 [ 24.188735] ? __virt_addr_valid+0x1db/0x2d0 [ 24.188760] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.188790] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.188815] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.188836] kasan_report+0x141/0x180 [ 24.188857] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.188927] kasan_check_range+0x10c/0x1c0 [ 24.188953] __asan_memset+0x27/0x50 [ 24.188976] kmalloc_oob_memset_2+0x166/0x330 [ 24.188996] ? __kasan_check_write+0x18/0x20 [ 24.189019] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 24.189054] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 24.189080] ? __pfx_read_tsc+0x10/0x10 [ 24.189101] ? ktime_get_ts64+0x86/0x230 [ 24.189137] kunit_try_run_case+0x1a5/0x480 [ 24.189159] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.189179] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 24.189201] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.189224] ? __kthread_parkme+0x82/0x180 [ 24.189245] ? preempt_count_sub+0x50/0x80 [ 24.189268] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.189289] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.189313] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.189337] kthread+0x337/0x6f0 [ 24.189356] ? trace_preempt_on+0x20/0xc0 [ 24.189379] ? __pfx_kthread+0x10/0x10 [ 24.189399] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.189421] ? calculate_sigpending+0x7b/0xa0 [ 24.189445] ? __pfx_kthread+0x10/0x10 [ 24.189466] ret_from_fork+0x116/0x1d0 [ 24.189485] ? __pfx_kthread+0x10/0x10 [ 24.189505] ret_from_fork_asm+0x1a/0x30 [ 24.189535] </TASK> [ 24.189546] [ 24.197260] Allocated by task 222: [ 24.197437] kasan_save_stack+0x45/0x70 [ 24.197862] kasan_save_track+0x18/0x40 [ 24.198099] kasan_save_alloc_info+0x3b/0x50 [ 24.198244] __kasan_kmalloc+0xb7/0xc0 [ 24.198409] __kmalloc_cache_noprof+0x189/0x420 [ 24.198641] kmalloc_oob_memset_2+0xac/0x330 [ 24.198992] kunit_try_run_case+0x1a5/0x480 [ 24.199164] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.199408] kthread+0x337/0x6f0 [ 24.199573] ret_from_fork+0x116/0x1d0 [ 24.199740] ret_from_fork_asm+0x1a/0x30 [ 24.200088] [ 24.200181] The buggy address belongs to the object at ffff8881058c1500 [ 24.200181] which belongs to the cache kmalloc-128 of size 128 [ 24.200635] The buggy address is located 119 bytes inside of [ 24.200635] allocated 120-byte region [ffff8881058c1500, ffff8881058c1578) [ 24.201253] [ 24.201342] The buggy address belongs to the physical page: [ 24.201556] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058c1 [ 24.201905] flags: 0x200000000000000(node=0|zone=2) [ 24.202062] page_type: f5(slab) [ 24.202177] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 24.202399] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.202912] page dumped because: kasan: bad access detected [ 24.203360] [ 24.203458] Memory state around the buggy address: [ 24.203679] ffff8881058c1400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.204073] ffff8881058c1480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.204308] >ffff8881058c1500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.204609] ^ [ 24.205042] ffff8881058c1580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.205254] ffff8881058c1600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.205460] ==================================================================