Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.919638] ================================================================== [ 17.919910] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 17.919966] Write of size 16 at addr fff00000c63d6569 by task kunit_try_catch/180 [ 17.920154] [ 17.920489] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 17.920826] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.920853] Hardware name: linux,dummy-virt (DT) [ 17.920910] Call trace: [ 17.920933] show_stack+0x20/0x38 (C) [ 17.920984] dump_stack_lvl+0x8c/0xd0 [ 17.921030] print_report+0x118/0x608 [ 17.921113] kasan_report+0xdc/0x128 [ 17.921182] kasan_check_range+0x100/0x1a8 [ 17.921489] __asan_memset+0x34/0x78 [ 17.921573] kmalloc_oob_memset_16+0x150/0x2f8 [ 17.921645] kunit_try_run_case+0x170/0x3f0 [ 17.921693] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.921744] kthread+0x328/0x630 [ 17.922018] ret_from_fork+0x10/0x20 [ 17.922098] [ 17.922116] Allocated by task 180: [ 17.922182] kasan_save_stack+0x3c/0x68 [ 17.922275] kasan_save_track+0x20/0x40 [ 17.922329] kasan_save_alloc_info+0x40/0x58 [ 17.922385] __kasan_kmalloc+0xd4/0xd8 [ 17.922455] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.922493] kmalloc_oob_memset_16+0xb0/0x2f8 [ 17.922810] kunit_try_run_case+0x170/0x3f0 [ 17.923010] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.923149] kthread+0x328/0x630 [ 17.923204] ret_from_fork+0x10/0x20 [ 17.923258] [ 17.923285] The buggy address belongs to the object at fff00000c63d6500 [ 17.923285] which belongs to the cache kmalloc-128 of size 128 [ 17.923380] The buggy address is located 105 bytes inside of [ 17.923380] allocated 120-byte region [fff00000c63d6500, fff00000c63d6578) [ 17.923493] [ 17.923587] The buggy address belongs to the physical page: [ 17.923670] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063d6 [ 17.923726] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.923875] page_type: f5(slab) [ 17.923971] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.924040] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.924078] page dumped because: kasan: bad access detected [ 17.924154] [ 17.924173] Memory state around the buggy address: [ 17.924203] fff00000c63d6400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.924292] fff00000c63d6480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.924341] >fff00000c63d6500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.924377] ^ [ 17.924414] fff00000c63d6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.924454] fff00000c63d6600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.924490] ==================================================================
[ 11.421423] ================================================================== [ 11.422217] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 11.423378] Write of size 16 at addr ffff8881035ebe69 by task kunit_try_catch/198 [ 11.423929] [ 11.424039] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 11.424091] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.424104] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.424127] Call Trace: [ 11.424140] <TASK> [ 11.424159] dump_stack_lvl+0x73/0xb0 [ 11.424189] print_report+0xd1/0x650 [ 11.424215] ? __virt_addr_valid+0x1db/0x2d0 [ 11.424239] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.424263] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.424286] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.424310] kasan_report+0x141/0x180 [ 11.424367] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.424396] kasan_check_range+0x10c/0x1c0 [ 11.424417] __asan_memset+0x27/0x50 [ 11.424439] kmalloc_oob_memset_16+0x166/0x330 [ 11.424466] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 11.424547] ? __schedule+0x10cc/0x2b60 [ 11.424577] ? __pfx_read_tsc+0x10/0x10 [ 11.424599] ? ktime_get_ts64+0x86/0x230 [ 11.424768] kunit_try_run_case+0x1a5/0x480 [ 11.424793] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.424813] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.424865] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.424904] ? __kthread_parkme+0x82/0x180 [ 11.424928] ? preempt_count_sub+0x50/0x80 [ 11.424955] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.424977] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.425002] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.425027] kthread+0x337/0x6f0 [ 11.425045] ? trace_preempt_on+0x20/0xc0 [ 11.425069] ? __pfx_kthread+0x10/0x10 [ 11.425089] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.425112] ? calculate_sigpending+0x7b/0xa0 [ 11.425136] ? __pfx_kthread+0x10/0x10 [ 11.425156] ret_from_fork+0x41/0x80 [ 11.425178] ? __pfx_kthread+0x10/0x10 [ 11.425197] ret_from_fork_asm+0x1a/0x30 [ 11.425230] </TASK> [ 11.425243] [ 11.440647] Allocated by task 198: [ 11.441043] kasan_save_stack+0x45/0x70 [ 11.441440] kasan_save_track+0x18/0x40 [ 11.441972] kasan_save_alloc_info+0x3b/0x50 [ 11.442300] __kasan_kmalloc+0xb7/0xc0 [ 11.442462] __kmalloc_cache_noprof+0x189/0x420 [ 11.443141] kmalloc_oob_memset_16+0xac/0x330 [ 11.443420] kunit_try_run_case+0x1a5/0x480 [ 11.443604] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.444258] kthread+0x337/0x6f0 [ 11.444606] ret_from_fork+0x41/0x80 [ 11.445051] ret_from_fork_asm+0x1a/0x30 [ 11.445201] [ 11.445277] The buggy address belongs to the object at ffff8881035ebe00 [ 11.445277] which belongs to the cache kmalloc-128 of size 128 [ 11.445934] The buggy address is located 105 bytes inside of [ 11.445934] allocated 120-byte region [ffff8881035ebe00, ffff8881035ebe78) [ 11.447320] [ 11.447489] The buggy address belongs to the physical page: [ 11.448264] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1035eb [ 11.448679] flags: 0x200000000000000(node=0|zone=2) [ 11.448940] page_type: f5(slab) [ 11.449300] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.450249] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.450765] page dumped because: kasan: bad access detected [ 11.451235] [ 11.451397] Memory state around the buggy address: [ 11.451869] ffff8881035ebd00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.452304] ffff8881035ebd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.452550] >ffff8881035ebe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.453361] ^ [ 11.454289] ffff8881035ebe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.454735] ffff8881035ebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.455262] ==================================================================