Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.718827] ================================================================== [ 15.718891] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 15.718968] Read of size 1 at addr fff00000c700b0c8 by task kunit_try_catch/207 [ 15.719019] [ 15.719073] CPU: 0 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.719158] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.719184] Hardware name: linux,dummy-virt (DT) [ 15.719216] Call trace: [ 15.719238] show_stack+0x20/0x38 (C) [ 15.719290] dump_stack_lvl+0x8c/0xd0 [ 15.719338] print_report+0x118/0x5d0 [ 15.719384] kasan_report+0xdc/0x128 [ 15.719431] __asan_report_load1_noabort+0x20/0x30 [ 15.719482] kmem_cache_oob+0x344/0x430 [ 15.719526] kunit_try_run_case+0x170/0x3f0 [ 15.719573] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.719625] kthread+0x328/0x630 [ 15.719678] ret_from_fork+0x10/0x20 [ 15.719727] [ 15.719746] Allocated by task 207: [ 15.719773] kasan_save_stack+0x3c/0x68 [ 15.719812] kasan_save_track+0x20/0x40 [ 15.719859] kasan_save_alloc_info+0x40/0x58 [ 15.720135] __kasan_slab_alloc+0xa8/0xb0 [ 15.720283] kmem_cache_alloc_noprof+0x10c/0x398 [ 15.720395] kmem_cache_oob+0x12c/0x430 [ 15.720555] kunit_try_run_case+0x170/0x3f0 [ 15.720595] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.720638] kthread+0x328/0x630 [ 15.720680] ret_from_fork+0x10/0x20 [ 15.720716] [ 15.720736] The buggy address belongs to the object at fff00000c700b000 [ 15.720736] which belongs to the cache test_cache of size 200 [ 15.720938] The buggy address is located 0 bytes to the right of [ 15.720938] allocated 200-byte region [fff00000c700b000, fff00000c700b0c8) [ 15.721005] [ 15.721025] The buggy address belongs to the physical page: [ 15.721090] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10700b [ 15.721153] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.721218] page_type: f5(slab) [ 15.721278] raw: 0bfffe0000000000 fff00000c1b5fdc0 dead000000000122 0000000000000000 [ 15.721412] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 15.721553] page dumped because: kasan: bad access detected [ 15.721633] [ 15.721726] Memory state around the buggy address: [ 15.721868] fff00000c700af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.721982] fff00000c700b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.722100] >fff00000c700b080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 15.722138] ^ [ 15.722220] fff00000c700b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.722555] fff00000c700b180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.722655] ==================================================================
[ 12.960739] ================================================================== [ 12.961597] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 12.962639] Read of size 1 at addr ffff88810273d0c8 by task kunit_try_catch/224 [ 12.963505] [ 12.963779] CPU: 1 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.963826] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.963837] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.963857] Call Trace: [ 12.963870] <TASK> [ 12.963886] dump_stack_lvl+0x73/0xb0 [ 12.963926] print_report+0xd1/0x610 [ 12.963947] ? __virt_addr_valid+0x1db/0x2d0 [ 12.963968] ? kmem_cache_oob+0x402/0x530 [ 12.963989] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.964010] ? kmem_cache_oob+0x402/0x530 [ 12.964031] kasan_report+0x141/0x180 [ 12.964051] ? kmem_cache_oob+0x402/0x530 [ 12.964077] __asan_report_load1_noabort+0x18/0x20 [ 12.964099] kmem_cache_oob+0x402/0x530 [ 12.964119] ? trace_hardirqs_on+0x37/0xe0 [ 12.964141] ? __pfx_kmem_cache_oob+0x10/0x10 [ 12.964161] ? finish_task_switch.isra.0+0x153/0x700 [ 12.964183] ? __switch_to+0x47/0xf50 [ 12.964210] ? __pfx_read_tsc+0x10/0x10 [ 12.964229] ? ktime_get_ts64+0x86/0x230 [ 12.964253] kunit_try_run_case+0x1a5/0x480 [ 12.964276] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.964296] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.964319] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.964340] ? __kthread_parkme+0x82/0x180 [ 12.964526] ? preempt_count_sub+0x50/0x80 [ 12.964550] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.964589] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.964612] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.964635] kthread+0x337/0x6f0 [ 12.964654] ? trace_preempt_on+0x20/0xc0 [ 12.964675] ? __pfx_kthread+0x10/0x10 [ 12.964696] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.964716] ? calculate_sigpending+0x7b/0xa0 [ 12.964740] ? __pfx_kthread+0x10/0x10 [ 12.964761] ret_from_fork+0x116/0x1d0 [ 12.964779] ? __pfx_kthread+0x10/0x10 [ 12.964799] ret_from_fork_asm+0x1a/0x30 [ 12.964828] </TASK> [ 12.964839] [ 12.976152] Allocated by task 224: [ 12.976526] kasan_save_stack+0x45/0x70 [ 12.976725] kasan_save_track+0x18/0x40 [ 12.977218] kasan_save_alloc_info+0x3b/0x50 [ 12.977367] __kasan_slab_alloc+0x91/0xa0 [ 12.977871] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.978108] kmem_cache_oob+0x157/0x530 [ 12.978417] kunit_try_run_case+0x1a5/0x480 [ 12.978851] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.979233] kthread+0x337/0x6f0 [ 12.979542] ret_from_fork+0x116/0x1d0 [ 12.979694] ret_from_fork_asm+0x1a/0x30 [ 12.980077] [ 12.980290] The buggy address belongs to the object at ffff88810273d000 [ 12.980290] which belongs to the cache test_cache of size 200 [ 12.981053] The buggy address is located 0 bytes to the right of [ 12.981053] allocated 200-byte region [ffff88810273d000, ffff88810273d0c8) [ 12.981549] [ 12.981627] The buggy address belongs to the physical page: [ 12.982057] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10273d [ 12.982337] flags: 0x200000000000000(node=0|zone=2) [ 12.982577] page_type: f5(slab) [ 12.982818] raw: 0200000000000000 ffff88810100d3c0 dead000000000122 0000000000000000 [ 12.983146] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.983586] page dumped because: kasan: bad access detected [ 12.983792] [ 12.983897] Memory state around the buggy address: [ 12.984079] ffff88810273cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.984369] ffff88810273d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.984727] >ffff88810273d080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.985014] ^ [ 12.985246] ffff88810273d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.985659] ffff88810273d180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.985988] ==================================================================