Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.594219] ================================================================== [ 21.594572] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 21.594732] Write of size 4 at addr fff00000c5d6ec75 by task kunit_try_catch/174 [ 21.594854] [ 21.594931] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.595112] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.595174] Hardware name: linux,dummy-virt (DT) [ 21.595251] Call trace: [ 21.595308] show_stack+0x20/0x38 (C) [ 21.595446] dump_stack_lvl+0x8c/0xd0 [ 21.595569] print_report+0x118/0x608 [ 21.596087] kasan_report+0xdc/0x128 [ 21.596308] kasan_check_range+0x100/0x1a8 [ 21.596786] __asan_memset+0x34/0x78 [ 21.597096] kmalloc_oob_memset_4+0x150/0x300 [ 21.597364] kunit_try_run_case+0x170/0x3f0 [ 21.597663] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.597813] kthread+0x328/0x630 [ 21.598221] ret_from_fork+0x10/0x20 [ 21.598475] [ 21.598589] Allocated by task 174: [ 21.598762] kasan_save_stack+0x3c/0x68 [ 21.599004] kasan_save_track+0x20/0x40 [ 21.599088] kasan_save_alloc_info+0x40/0x58 [ 21.599160] __kasan_kmalloc+0xd4/0xd8 [ 21.599239] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.599328] kmalloc_oob_memset_4+0xb0/0x300 [ 21.599818] kunit_try_run_case+0x170/0x3f0 [ 21.600049] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.600287] kthread+0x328/0x630 [ 21.600537] ret_from_fork+0x10/0x20 [ 21.600658] [ 21.600712] The buggy address belongs to the object at fff00000c5d6ec00 [ 21.600712] which belongs to the cache kmalloc-128 of size 128 [ 21.601243] The buggy address is located 117 bytes inside of [ 21.601243] allocated 120-byte region [fff00000c5d6ec00, fff00000c5d6ec78) [ 21.601406] [ 21.601503] The buggy address belongs to the physical page: [ 21.601615] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105d6e [ 21.601800] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.602015] page_type: f5(slab) [ 21.602118] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 21.602554] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.602902] page dumped because: kasan: bad access detected [ 21.602989] [ 21.603039] Memory state around the buggy address: [ 21.603121] fff00000c5d6eb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.603227] fff00000c5d6eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.603315] >fff00000c5d6ec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 21.603384] ^ [ 21.604012] fff00000c5d6ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.604161] fff00000c5d6ed00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.604314] ==================================================================
[ 10.988404] ================================================================== [ 10.988909] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 10.989197] Write of size 4 at addr ffff888102896b75 by task kunit_try_catch/191 [ 10.989508] [ 10.989622] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.989667] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.989679] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.989700] Call Trace: [ 10.989711] <TASK> [ 10.989726] dump_stack_lvl+0x73/0xb0 [ 10.989751] print_report+0xd1/0x650 [ 10.989773] ? __virt_addr_valid+0x1db/0x2d0 [ 10.989795] ? kmalloc_oob_memset_4+0x166/0x330 [ 10.989815] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.989837] ? kmalloc_oob_memset_4+0x166/0x330 [ 10.989859] kasan_report+0x141/0x180 [ 10.989880] ? kmalloc_oob_memset_4+0x166/0x330 [ 10.989906] kasan_check_range+0x10c/0x1c0 [ 10.989930] __asan_memset+0x27/0x50 [ 10.989949] kmalloc_oob_memset_4+0x166/0x330 [ 10.989971] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 10.989994] ? __schedule+0x10cc/0x2b60 [ 10.990016] ? __pfx_read_tsc+0x10/0x10 [ 10.990036] ? ktime_get_ts64+0x86/0x230 [ 10.990060] kunit_try_run_case+0x1a5/0x480 [ 10.990081] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.990099] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.990123] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.990146] ? __kthread_parkme+0x82/0x180 [ 10.990166] ? preempt_count_sub+0x50/0x80 [ 10.990188] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.990209] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.990232] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.990255] kthread+0x337/0x6f0 [ 10.990274] ? trace_preempt_on+0x20/0xc0 [ 10.990297] ? __pfx_kthread+0x10/0x10 [ 10.990316] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.990338] ? calculate_sigpending+0x7b/0xa0 [ 10.990361] ? __pfx_kthread+0x10/0x10 [ 10.990382] ret_from_fork+0x116/0x1d0 [ 10.990400] ? __pfx_kthread+0x10/0x10 [ 10.990419] ret_from_fork_asm+0x1a/0x30 [ 10.990449] </TASK> [ 10.990459] [ 10.997958] Allocated by task 191: [ 10.998136] kasan_save_stack+0x45/0x70 [ 10.998316] kasan_save_track+0x18/0x40 [ 10.998501] kasan_save_alloc_info+0x3b/0x50 [ 10.998711] __kasan_kmalloc+0xb7/0xc0 [ 10.998964] __kmalloc_cache_noprof+0x189/0x420 [ 10.999128] kmalloc_oob_memset_4+0xac/0x330 [ 10.999330] kunit_try_run_case+0x1a5/0x480 [ 10.999538] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.999875] kthread+0x337/0x6f0 [ 11.000052] ret_from_fork+0x116/0x1d0 [ 11.000196] ret_from_fork_asm+0x1a/0x30 [ 11.000396] [ 11.000486] The buggy address belongs to the object at ffff888102896b00 [ 11.000486] which belongs to the cache kmalloc-128 of size 128 [ 11.000935] The buggy address is located 117 bytes inside of [ 11.000935] allocated 120-byte region [ffff888102896b00, ffff888102896b78) [ 11.001480] [ 11.001577] The buggy address belongs to the physical page: [ 11.001920] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102896 [ 11.002269] flags: 0x200000000000000(node=0|zone=2) [ 11.002483] page_type: f5(slab) [ 11.002620] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.002930] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.003273] page dumped because: kasan: bad access detected [ 11.003532] [ 11.003636] Memory state around the buggy address: [ 11.004035] ffff888102896a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.004377] ffff888102896a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.004691] >ffff888102896b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.005041] ^ [ 11.005346] ffff888102896b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.005645] ffff888102896c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.005998] ==================================================================