Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.434314] ================================================================== [ 15.434501] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.434590] Write of size 4 at addr fff00000c3f39675 by task kunit_try_catch/174 [ 15.434751] [ 15.434841] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 15.434939] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.434965] Hardware name: linux,dummy-virt (DT) [ 15.435149] Call trace: [ 15.435345] show_stack+0x20/0x38 (C) [ 15.435492] dump_stack_lvl+0x8c/0xd0 [ 15.435545] print_report+0x118/0x5d0 [ 15.435591] kasan_report+0xdc/0x128 [ 15.435645] kasan_check_range+0x100/0x1a8 [ 15.435708] __asan_memset+0x34/0x78 [ 15.435750] kmalloc_oob_memset_4+0x150/0x300 [ 15.435796] kunit_try_run_case+0x170/0x3f0 [ 15.435842] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.435919] kthread+0x328/0x630 [ 15.435971] ret_from_fork+0x10/0x20 [ 15.436035] [ 15.436054] Allocated by task 174: [ 15.436089] kasan_save_stack+0x3c/0x68 [ 15.436152] kasan_save_track+0x20/0x40 [ 15.436189] kasan_save_alloc_info+0x40/0x58 [ 15.436229] __kasan_kmalloc+0xd4/0xd8 [ 15.436265] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.436315] kmalloc_oob_memset_4+0xb0/0x300 [ 15.436352] kunit_try_run_case+0x170/0x3f0 [ 15.436390] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.436442] kthread+0x328/0x630 [ 15.436475] ret_from_fork+0x10/0x20 [ 15.436518] [ 15.436538] The buggy address belongs to the object at fff00000c3f39600 [ 15.436538] which belongs to the cache kmalloc-128 of size 128 [ 15.436605] The buggy address is located 117 bytes inside of [ 15.436605] allocated 120-byte region [fff00000c3f39600, fff00000c3f39678) [ 15.436680] [ 15.436702] The buggy address belongs to the physical page: [ 15.436733] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f39 [ 15.436795] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.436862] page_type: f5(slab) [ 15.437509] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.437595] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.437674] page dumped because: kasan: bad access detected [ 15.437730] [ 15.437895] Memory state around the buggy address: [ 15.438047] fff00000c3f39500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.438550] fff00000c3f39580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.439044] >fff00000c3f39600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.439141] ^ [ 15.439210] fff00000c3f39680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.439265] fff00000c3f39700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.439320] ==================================================================
[ 12.712944] ================================================================== [ 12.713953] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.714619] Write of size 4 at addr ffff888102af7975 by task kunit_try_catch/191 [ 12.714949] [ 12.715059] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 12.715103] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.715115] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.715136] Call Trace: [ 12.715150] <TASK> [ 12.715166] dump_stack_lvl+0x73/0xb0 [ 12.715196] print_report+0xd1/0x610 [ 12.715218] ? __virt_addr_valid+0x1db/0x2d0 [ 12.715241] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.715262] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.715284] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.715306] kasan_report+0x141/0x180 [ 12.715327] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.715353] kasan_check_range+0x10c/0x1c0 [ 12.715376] __asan_memset+0x27/0x50 [ 12.715395] kmalloc_oob_memset_4+0x166/0x330 [ 12.715417] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.715439] ? __schedule+0x10c6/0x2b60 [ 12.715461] ? __pfx_read_tsc+0x10/0x10 [ 12.715482] ? ktime_get_ts64+0x86/0x230 [ 12.715506] kunit_try_run_case+0x1a5/0x480 [ 12.715530] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.715552] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.715575] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.715598] ? __kthread_parkme+0x82/0x180 [ 12.715618] ? preempt_count_sub+0x50/0x80 [ 12.715641] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.715664] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.715686] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.715709] kthread+0x337/0x6f0 [ 12.715728] ? trace_preempt_on+0x20/0xc0 [ 12.715750] ? __pfx_kthread+0x10/0x10 [ 12.715770] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.715791] ? calculate_sigpending+0x7b/0xa0 [ 12.715825] ? __pfx_kthread+0x10/0x10 [ 12.715847] ret_from_fork+0x116/0x1d0 [ 12.715865] ? __pfx_kthread+0x10/0x10 [ 12.715885] ret_from_fork_asm+0x1a/0x30 [ 12.715916] </TASK> [ 12.715926] [ 12.723560] Allocated by task 191: [ 12.723751] kasan_save_stack+0x45/0x70 [ 12.723973] kasan_save_track+0x18/0x40 [ 12.724200] kasan_save_alloc_info+0x3b/0x50 [ 12.724352] __kasan_kmalloc+0xb7/0xc0 [ 12.724486] __kmalloc_cache_noprof+0x189/0x420 [ 12.724712] kmalloc_oob_memset_4+0xac/0x330 [ 12.724937] kunit_try_run_case+0x1a5/0x480 [ 12.725147] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.725529] kthread+0x337/0x6f0 [ 12.725654] ret_from_fork+0x116/0x1d0 [ 12.725788] ret_from_fork_asm+0x1a/0x30 [ 12.725995] [ 12.726092] The buggy address belongs to the object at ffff888102af7900 [ 12.726092] which belongs to the cache kmalloc-128 of size 128 [ 12.726646] The buggy address is located 117 bytes inside of [ 12.726646] allocated 120-byte region [ffff888102af7900, ffff888102af7978) [ 12.727386] [ 12.727478] The buggy address belongs to the physical page: [ 12.727736] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102af7 [ 12.728000] flags: 0x200000000000000(node=0|zone=2) [ 12.728172] page_type: f5(slab) [ 12.728297] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.728533] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.729212] page dumped because: kasan: bad access detected [ 12.729518] [ 12.729616] Memory state around the buggy address: [ 12.729848] ffff888102af7800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.730069] ffff888102af7880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.730674] >ffff888102af7900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.730978] ^ [ 12.731449] ffff888102af7980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.731674] ffff888102af7a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.731958] ==================================================================