Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.601319] ================================================================== [ 29.601378] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 29.601427] Write of size 2 at addr fff00000c5a97b77 by task kunit_try_catch/205 [ 29.601475] [ 29.601547] CPU: 0 UID: 0 PID: 205 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 29.601684] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.601877] Hardware name: linux,dummy-virt (DT) [ 29.601965] Call trace: [ 29.602088] show_stack+0x20/0x38 (C) [ 29.602137] dump_stack_lvl+0x8c/0xd0 [ 29.602209] print_report+0x118/0x608 [ 29.602255] kasan_report+0xdc/0x128 [ 29.602300] kasan_check_range+0x100/0x1a8 [ 29.602575] __asan_memset+0x34/0x78 [ 29.602720] kmalloc_oob_memset_2+0x150/0x2f8 [ 29.602786] kunit_try_run_case+0x170/0x3f0 [ 29.602998] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.603215] kthread+0x328/0x630 [ 29.603359] ret_from_fork+0x10/0x20 [ 29.603435] [ 29.603454] Allocated by task 205: [ 29.603480] kasan_save_stack+0x3c/0x68 [ 29.603521] kasan_save_track+0x20/0x40 [ 29.603693] kasan_save_alloc_info+0x40/0x58 [ 29.603827] __kasan_kmalloc+0xd4/0xd8 [ 29.603925] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.603966] kmalloc_oob_memset_2+0xb0/0x2f8 [ 29.604003] kunit_try_run_case+0x170/0x3f0 [ 29.604053] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.604106] kthread+0x328/0x630 [ 29.604138] ret_from_fork+0x10/0x20 [ 29.604189] [ 29.604208] The buggy address belongs to the object at fff00000c5a97b00 [ 29.604208] which belongs to the cache kmalloc-128 of size 128 [ 29.604264] The buggy address is located 119 bytes inside of [ 29.604264] allocated 120-byte region [fff00000c5a97b00, fff00000c5a97b78) [ 29.604324] [ 29.604345] The buggy address belongs to the physical page: [ 29.604394] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a97 [ 29.604454] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.604507] page_type: f5(slab) [ 29.604545] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.604592] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.604631] page dumped because: kasan: bad access detected [ 29.604670] [ 29.604688] Memory state around the buggy address: [ 29.604718] fff00000c5a97a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.604760] fff00000c5a97a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.604805] >fff00000c5a97b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.604842] ^ [ 29.604891] fff00000c5a97b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.604942] fff00000c5a97c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.604978] ==================================================================
[ 24.979012] ================================================================== [ 24.979494] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 24.979874] Write of size 2 at addr ffff888105aac077 by task kunit_try_catch/221 [ 24.980216] [ 24.980343] CPU: 0 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 24.980413] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.980427] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.980452] Call Trace: [ 24.980467] <TASK> [ 24.980489] dump_stack_lvl+0x73/0xb0 [ 24.980522] print_report+0xd1/0x650 [ 24.980547] ? __virt_addr_valid+0x1db/0x2d0 [ 24.980574] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.980596] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.980624] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.980646] kasan_report+0x141/0x180 [ 24.980669] ? kmalloc_oob_memset_2+0x166/0x330 [ 24.980697] kasan_check_range+0x10c/0x1c0 [ 24.980722] __asan_memset+0x27/0x50 [ 24.980746] kmalloc_oob_memset_2+0x166/0x330 [ 24.980770] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 24.980794] ? __schedule+0x10cc/0x2b60 [ 24.980820] ? __pfx_read_tsc+0x10/0x10 [ 24.980845] ? ktime_get_ts64+0x86/0x230 [ 24.980873] kunit_try_run_case+0x1a5/0x480 [ 24.980979] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.981005] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.981032] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.981058] ? __kthread_parkme+0x82/0x180 [ 24.981082] ? preempt_count_sub+0x50/0x80 [ 24.981170] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.981201] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.981228] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.981254] kthread+0x337/0x6f0 [ 24.981276] ? trace_preempt_on+0x20/0xc0 [ 24.981303] ? __pfx_kthread+0x10/0x10 [ 24.981325] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.981349] ? calculate_sigpending+0x7b/0xa0 [ 24.981376] ? __pfx_kthread+0x10/0x10 [ 24.981411] ret_from_fork+0x116/0x1d0 [ 24.981432] ? __pfx_kthread+0x10/0x10 [ 24.981454] ret_from_fork_asm+0x1a/0x30 [ 24.981489] </TASK> [ 24.981502] [ 24.989825] Allocated by task 221: [ 24.989965] kasan_save_stack+0x45/0x70 [ 24.990348] kasan_save_track+0x18/0x40 [ 24.990582] kasan_save_alloc_info+0x3b/0x50 [ 24.990808] __kasan_kmalloc+0xb7/0xc0 [ 24.991113] __kmalloc_cache_noprof+0x189/0x420 [ 24.991269] kmalloc_oob_memset_2+0xac/0x330 [ 24.991426] kunit_try_run_case+0x1a5/0x480 [ 24.991774] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.992240] kthread+0x337/0x6f0 [ 24.992429] ret_from_fork+0x116/0x1d0 [ 24.992634] ret_from_fork_asm+0x1a/0x30 [ 24.992835] [ 24.992981] The buggy address belongs to the object at ffff888105aac000 [ 24.992981] which belongs to the cache kmalloc-128 of size 128 [ 24.993546] The buggy address is located 119 bytes inside of [ 24.993546] allocated 120-byte region [ffff888105aac000, ffff888105aac078) [ 24.994082] [ 24.994355] The buggy address belongs to the physical page: [ 24.994611] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105aac [ 24.994871] flags: 0x200000000000000(node=0|zone=2) [ 24.995039] page_type: f5(slab) [ 24.995162] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 24.995473] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.995903] page dumped because: kasan: bad access detected [ 24.996159] [ 24.996296] Memory state around the buggy address: [ 24.996620] ffff888105aabf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.996847] ffff888105aabf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.997534] >ffff888105aac000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.997871] ^ [ 24.998334] ffff888105aac080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.998642] ffff888105aac100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.999009] ==================================================================