Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.494013] ================================================================== [ 31.494096] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 31.494147] Write of size 16 at addr fff00000c907e060 by task kunit_try_catch/197 [ 31.494196] [ 31.494229] CPU: 0 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 31.494308] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.494336] Hardware name: linux,dummy-virt (DT) [ 31.494378] Call trace: [ 31.494400] show_stack+0x20/0x38 (C) [ 31.494447] dump_stack_lvl+0x8c/0xd0 [ 31.494494] print_report+0x118/0x5e8 [ 31.494536] kasan_report+0xdc/0x128 [ 31.494578] __asan_report_store16_noabort+0x20/0x30 [ 31.494626] kmalloc_oob_16+0x3a0/0x3f8 [ 31.494681] kunit_try_run_case+0x170/0x3f0 [ 31.494726] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.494775] kthread+0x328/0x630 [ 31.494816] ret_from_fork+0x10/0x20 [ 31.494861] [ 31.494879] Allocated by task 197: [ 31.494906] kasan_save_stack+0x3c/0x68 [ 31.494942] kasan_save_track+0x20/0x40 [ 31.494976] kasan_save_alloc_info+0x40/0x58 [ 31.495020] __kasan_kmalloc+0xd4/0xd8 [ 31.495053] __kmalloc_cache_noprof+0x16c/0x3c0 [ 31.495375] kmalloc_oob_16+0xb4/0x3f8 [ 31.495621] kunit_try_run_case+0x170/0x3f0 [ 31.495994] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.496227] kthread+0x328/0x630 [ 31.496294] ret_from_fork+0x10/0x20 [ 31.496347] [ 31.496389] The buggy address belongs to the object at fff00000c907e060 [ 31.496389] which belongs to the cache kmalloc-16 of size 16 [ 31.496445] The buggy address is located 0 bytes inside of [ 31.496445] allocated 13-byte region [fff00000c907e060, fff00000c907e06d) [ 31.496505] [ 31.496524] The buggy address belongs to the physical page: [ 31.497312] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xfff00000c907e020 pfn:0x10907e [ 31.497438] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.497487] page_type: f5(slab) [ 31.497542] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 31.497613] raw: fff00000c907e020 000000008080007f 00000000f5000000 0000000000000000 [ 31.498094] page dumped because: kasan: bad access detected [ 31.498220] [ 31.498425] Memory state around the buggy address: [ 31.498473] fff00000c907df00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.498527] fff00000c907df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.498763] >fff00000c907e000: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 31.498978] ^ [ 31.499161] fff00000c907e080: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.499238] fff00000c907e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.499309] ==================================================================
[ 24.820095] ================================================================== [ 24.820649] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 24.821641] Write of size 16 at addr ffff888102abfb60 by task kunit_try_catch/214 [ 24.822592] [ 24.822978] CPU: 1 UID: 0 PID: 214 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 24.823035] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.823048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.823071] Call Trace: [ 24.823085] <TASK> [ 24.823103] dump_stack_lvl+0x73/0xb0 [ 24.823139] print_report+0xd1/0x640 [ 24.823161] ? __virt_addr_valid+0x1db/0x2d0 [ 24.823186] ? kmalloc_oob_16+0x452/0x4a0 [ 24.823216] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.823240] ? kmalloc_oob_16+0x452/0x4a0 [ 24.823260] kasan_report+0x141/0x180 [ 24.823281] ? kmalloc_oob_16+0x452/0x4a0 [ 24.823304] __asan_report_store16_noabort+0x1b/0x30 [ 24.823328] kmalloc_oob_16+0x452/0x4a0 [ 24.823348] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 24.823370] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 24.823394] kunit_try_run_case+0x1a5/0x480 [ 24.823420] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.823441] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.823475] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.823507] ? __kthread_parkme+0x82/0x180 [ 24.823528] ? preempt_count_sub+0x50/0x80 [ 24.823551] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.823573] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.823595] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.823617] kthread+0x337/0x6f0 [ 24.823636] ? trace_preempt_on+0x20/0xc0 [ 24.823660] ? __pfx_kthread+0x10/0x10 [ 24.823679] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.823708] ? calculate_sigpending+0x7b/0xa0 [ 24.823731] ? __pfx_kthread+0x10/0x10 [ 24.823752] ret_from_fork+0x116/0x1d0 [ 24.823771] ? __pfx_kthread+0x10/0x10 [ 24.823791] ret_from_fork_asm+0x1a/0x30 [ 24.823822] </TASK> [ 24.823833] [ 24.836830] Allocated by task 214: [ 24.837189] kasan_save_stack+0x45/0x70 [ 24.837564] kasan_save_track+0x18/0x40 [ 24.837943] kasan_save_alloc_info+0x3b/0x50 [ 24.838402] __kasan_kmalloc+0xb7/0xc0 [ 24.838800] __kmalloc_cache_noprof+0x189/0x420 [ 24.839220] kmalloc_oob_16+0xa8/0x4a0 [ 24.839451] kunit_try_run_case+0x1a5/0x480 [ 24.839826] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.840106] kthread+0x337/0x6f0 [ 24.840423] ret_from_fork+0x116/0x1d0 [ 24.840815] ret_from_fork_asm+0x1a/0x30 [ 24.841063] [ 24.841175] The buggy address belongs to the object at ffff888102abfb60 [ 24.841175] which belongs to the cache kmalloc-16 of size 16 [ 24.842020] The buggy address is located 0 bytes inside of [ 24.842020] allocated 13-byte region [ffff888102abfb60, ffff888102abfb6d) [ 24.842999] [ 24.843160] The buggy address belongs to the physical page: [ 24.843616] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102abf [ 24.844038] flags: 0x200000000000000(node=0|zone=2) [ 24.844527] page_type: f5(slab) [ 24.844854] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 24.845474] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.845731] page dumped because: kasan: bad access detected [ 24.846265] [ 24.846436] Memory state around the buggy address: [ 24.846919] ffff888102abfa00: 00 06 fc fc 00 06 fc fc 00 06 fc fc fa fb fc fc [ 24.847557] ffff888102abfa80: 00 00 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.847869] >ffff888102abfb00: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 24.848126] ^ [ 24.848331] ffff888102abfb80: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.848541] ffff888102abfc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.848747] ==================================================================