Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.388206] ================================================================== [ 15.388305] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 15.388373] Write of size 16 at addr fff00000c3fc2e69 by task kunit_try_catch/178 [ 15.388453] [ 15.388511] CPU: 0 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.388629] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.388655] Hardware name: linux,dummy-virt (DT) [ 15.388713] Call trace: [ 15.388781] show_stack+0x20/0x38 (C) [ 15.388846] dump_stack_lvl+0x8c/0xd0 [ 15.388892] print_report+0x118/0x5d0 [ 15.388938] kasan_report+0xdc/0x128 [ 15.389017] kasan_check_range+0x100/0x1a8 [ 15.389092] __asan_memset+0x34/0x78 [ 15.389134] kmalloc_oob_memset_16+0x150/0x2f8 [ 15.389179] kunit_try_run_case+0x170/0x3f0 [ 15.389223] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.389282] kthread+0x328/0x630 [ 15.389322] ret_from_fork+0x10/0x20 [ 15.389463] [ 15.389487] Allocated by task 178: [ 15.389514] kasan_save_stack+0x3c/0x68 [ 15.389579] kasan_save_track+0x20/0x40 [ 15.389788] kasan_save_alloc_info+0x40/0x58 [ 15.389840] __kasan_kmalloc+0xd4/0xd8 [ 15.389876] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.389937] kmalloc_oob_memset_16+0xb0/0x2f8 [ 15.389974] kunit_try_run_case+0x170/0x3f0 [ 15.390010] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.390052] kthread+0x328/0x630 [ 15.390083] ret_from_fork+0x10/0x20 [ 15.390127] [ 15.390154] The buggy address belongs to the object at fff00000c3fc2e00 [ 15.390154] which belongs to the cache kmalloc-128 of size 128 [ 15.390210] The buggy address is located 105 bytes inside of [ 15.390210] allocated 120-byte region [fff00000c3fc2e00, fff00000c3fc2e78) [ 15.390271] [ 15.390306] The buggy address belongs to the physical page: [ 15.390336] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fc2 [ 15.390394] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.390440] page_type: f5(slab) [ 15.390482] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.390546] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.390584] page dumped because: kasan: bad access detected [ 15.390615] [ 15.390642] Memory state around the buggy address: [ 15.390682] fff00000c3fc2d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.390722] fff00000c3fc2d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.390762] >fff00000c3fc2e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.390798] ^ [ 15.390836] fff00000c3fc2e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.390876] fff00000c3fc2f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.390912] ==================================================================
[ 12.458231] ================================================================== [ 12.459503] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 12.460142] Write of size 16 at addr ffff888102ad4469 by task kunit_try_catch/195 [ 12.460465] [ 12.460580] CPU: 0 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.460626] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.460637] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.460659] Call Trace: [ 12.460672] <TASK> [ 12.460690] dump_stack_lvl+0x73/0xb0 [ 12.460721] print_report+0xd1/0x610 [ 12.460742] ? __virt_addr_valid+0x1db/0x2d0 [ 12.460764] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.460784] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.460805] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.460826] kasan_report+0x141/0x180 [ 12.460846] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.460871] kasan_check_range+0x10c/0x1c0 [ 12.460892] __asan_memset+0x27/0x50 [ 12.460921] kmalloc_oob_memset_16+0x166/0x330 [ 12.460942] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 12.460963] ? __schedule+0x10cc/0x2b60 [ 12.460985] ? __pfx_read_tsc+0x10/0x10 [ 12.461004] ? ktime_get_ts64+0x86/0x230 [ 12.461029] kunit_try_run_case+0x1a5/0x480 [ 12.461138] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.461200] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.461247] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.461285] ? __kthread_parkme+0x82/0x180 [ 12.461305] ? preempt_count_sub+0x50/0x80 [ 12.461328] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.461369] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.461392] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.461414] kthread+0x337/0x6f0 [ 12.461432] ? trace_preempt_on+0x20/0xc0 [ 12.461454] ? __pfx_kthread+0x10/0x10 [ 12.461474] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.461494] ? calculate_sigpending+0x7b/0xa0 [ 12.461517] ? __pfx_kthread+0x10/0x10 [ 12.461537] ret_from_fork+0x116/0x1d0 [ 12.461557] ? __pfx_kthread+0x10/0x10 [ 12.461611] ret_from_fork_asm+0x1a/0x30 [ 12.461641] </TASK> [ 12.461652] [ 12.470404] Allocated by task 195: [ 12.470591] kasan_save_stack+0x45/0x70 [ 12.470781] kasan_save_track+0x18/0x40 [ 12.470967] kasan_save_alloc_info+0x3b/0x50 [ 12.471179] __kasan_kmalloc+0xb7/0xc0 [ 12.471342] __kmalloc_cache_noprof+0x189/0x420 [ 12.471690] kmalloc_oob_memset_16+0xac/0x330 [ 12.471841] kunit_try_run_case+0x1a5/0x480 [ 12.471993] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.472461] kthread+0x337/0x6f0 [ 12.472832] ret_from_fork+0x116/0x1d0 [ 12.473231] ret_from_fork_asm+0x1a/0x30 [ 12.473917] [ 12.474115] The buggy address belongs to the object at ffff888102ad4400 [ 12.474115] which belongs to the cache kmalloc-128 of size 128 [ 12.474879] The buggy address is located 105 bytes inside of [ 12.474879] allocated 120-byte region [ffff888102ad4400, ffff888102ad4478) [ 12.475652] [ 12.475752] The buggy address belongs to the physical page: [ 12.476068] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad4 [ 12.476815] flags: 0x200000000000000(node=0|zone=2) [ 12.476995] page_type: f5(slab) [ 12.477115] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.477347] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.477696] page dumped because: kasan: bad access detected [ 12.477954] [ 12.478024] Memory state around the buggy address: [ 12.478599] ffff888102ad4300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.479326] ffff888102ad4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.479895] >ffff888102ad4400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.480295] ^ [ 12.480781] ffff888102ad4480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.481093] ffff888102ad4500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.481421] ==================================================================