Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.364469] ================================================================== [ 19.364573] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 19.364660] Write of size 8 at addr fff00000c4065571 by task kunit_try_catch/176 [ 19.364718] [ 19.364765] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 19.364861] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.364890] Hardware name: linux,dummy-virt (DT) [ 19.364925] Call trace: [ 19.364953] show_stack+0x20/0x38 (C) [ 19.365445] dump_stack_lvl+0x8c/0xd0 [ 19.365658] print_report+0x118/0x608 [ 19.365797] kasan_report+0xdc/0x128 [ 19.365865] kasan_check_range+0x100/0x1a8 [ 19.366035] __asan_memset+0x34/0x78 [ 19.366150] kmalloc_oob_memset_8+0x150/0x2f8 [ 19.366248] kunit_try_run_case+0x170/0x3f0 [ 19.366352] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.366477] kthread+0x328/0x630 [ 19.366535] ret_from_fork+0x10/0x20 [ 19.366623] [ 19.366697] Allocated by task 176: [ 19.366733] kasan_save_stack+0x3c/0x68 [ 19.366784] kasan_save_track+0x20/0x40 [ 19.366827] kasan_save_alloc_info+0x40/0x58 [ 19.366872] __kasan_kmalloc+0xd4/0xd8 [ 19.366915] __kmalloc_cache_noprof+0x15c/0x3c0 [ 19.367056] kmalloc_oob_memset_8+0xb0/0x2f8 [ 19.367274] kunit_try_run_case+0x170/0x3f0 [ 19.367323] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.367380] kthread+0x328/0x630 [ 19.367441] ret_from_fork+0x10/0x20 [ 19.367481] [ 19.367504] The buggy address belongs to the object at fff00000c4065500 [ 19.367504] which belongs to the cache kmalloc-128 of size 128 [ 19.367668] The buggy address is located 113 bytes inside of [ 19.367668] allocated 120-byte region [fff00000c4065500, fff00000c4065578) [ 19.367754] [ 19.367812] The buggy address belongs to the physical page: [ 19.367848] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104065 [ 19.367953] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.368145] page_type: f5(slab) [ 19.368268] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.368330] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.368375] page dumped because: kasan: bad access detected [ 19.368410] [ 19.368578] Memory state around the buggy address: [ 19.368645] fff00000c4065400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.368705] fff00000c4065480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.368755] >fff00000c4065500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.368796] ^ [ 19.368841] fff00000c4065580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.368887] fff00000c4065600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.368928] ==================================================================
[ 11.234440] ================================================================== [ 11.234999] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 11.235323] Write of size 8 at addr ffff8881026a8871 by task kunit_try_catch/193 [ 11.235718] [ 11.235838] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.235884] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.235896] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.235916] Call Trace: [ 11.235938] <TASK> [ 11.235955] dump_stack_lvl+0x73/0xb0 [ 11.235983] print_report+0xd1/0x650 [ 11.236005] ? __virt_addr_valid+0x1db/0x2d0 [ 11.236028] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.236050] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.236072] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.236094] kasan_report+0x141/0x180 [ 11.236116] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.236143] kasan_check_range+0x10c/0x1c0 [ 11.236166] __asan_memset+0x27/0x50 [ 11.236198] kmalloc_oob_memset_8+0x166/0x330 [ 11.236221] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 11.236244] ? __schedule+0x10cc/0x2b60 [ 11.236266] ? __pfx_read_tsc+0x10/0x10 [ 11.236286] ? ktime_get_ts64+0x86/0x230 [ 11.236310] kunit_try_run_case+0x1a5/0x480 [ 11.236334] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.236355] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.236377] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.236399] ? __kthread_parkme+0x82/0x180 [ 11.236419] ? preempt_count_sub+0x50/0x80 [ 11.236443] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.236466] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.236489] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.236511] kthread+0x337/0x6f0 [ 11.236539] ? trace_preempt_on+0x20/0xc0 [ 11.236563] ? __pfx_kthread+0x10/0x10 [ 11.236583] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.236603] ? calculate_sigpending+0x7b/0xa0 [ 11.236636] ? __pfx_kthread+0x10/0x10 [ 11.236658] ret_from_fork+0x116/0x1d0 [ 11.236675] ? __pfx_kthread+0x10/0x10 [ 11.236696] ret_from_fork_asm+0x1a/0x30 [ 11.236727] </TASK> [ 11.236737] [ 11.246990] Allocated by task 193: [ 11.247149] kasan_save_stack+0x45/0x70 [ 11.247736] kasan_save_track+0x18/0x40 [ 11.247918] kasan_save_alloc_info+0x3b/0x50 [ 11.248115] __kasan_kmalloc+0xb7/0xc0 [ 11.248437] __kmalloc_cache_noprof+0x189/0x420 [ 11.248813] kmalloc_oob_memset_8+0xac/0x330 [ 11.249018] kunit_try_run_case+0x1a5/0x480 [ 11.249214] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.249622] kthread+0x337/0x6f0 [ 11.249779] ret_from_fork+0x116/0x1d0 [ 11.250083] ret_from_fork_asm+0x1a/0x30 [ 11.250430] [ 11.250564] The buggy address belongs to the object at ffff8881026a8800 [ 11.250564] which belongs to the cache kmalloc-128 of size 128 [ 11.250967] The buggy address is located 113 bytes inside of [ 11.250967] allocated 120-byte region [ffff8881026a8800, ffff8881026a8878) [ 11.251540] [ 11.251653] The buggy address belongs to the physical page: [ 11.251840] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1026a8 [ 11.252609] flags: 0x200000000000000(node=0|zone=2) [ 11.252891] page_type: f5(slab) [ 11.253039] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.253393] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.253892] page dumped because: kasan: bad access detected [ 11.254157] [ 11.254272] Memory state around the buggy address: [ 11.254709] ffff8881026a8700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.255015] ffff8881026a8780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.255513] >ffff8881026a8800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.255950] ^ [ 11.256329] ffff8881026a8880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.256914] ffff8881026a8900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.257227] ==================================================================