Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.969861] ================================================================== [ 20.970045] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 20.970199] Read of size 1 at addr fff00000c78b1000 by task kunit_try_catch/140 [ 20.970307] [ 20.970471] CPU: 0 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 20.970668] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.970729] Hardware name: linux,dummy-virt (DT) [ 20.971121] Call trace: [ 20.972499] show_stack+0x20/0x38 (C) [ 20.972587] dump_stack_lvl+0x8c/0xd0 [ 20.972650] print_report+0x118/0x608 [ 20.972706] kasan_report+0xdc/0x128 [ 20.972757] __asan_report_load1_noabort+0x20/0x30 [ 20.972811] kmalloc_node_oob_right+0x2f4/0x330 [ 20.972865] kunit_try_run_case+0x170/0x3f0 [ 20.972922] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.972981] kthread+0x328/0x630 [ 20.973030] ret_from_fork+0x10/0x20 [ 20.973089] [ 20.973111] Allocated by task 140: [ 20.973147] kasan_save_stack+0x3c/0x68 [ 20.973198] kasan_save_track+0x20/0x40 [ 20.973240] kasan_save_alloc_info+0x40/0x58 [ 20.973280] __kasan_kmalloc+0xd4/0xd8 [ 20.973319] __kmalloc_cache_node_noprof+0x168/0x3d0 [ 20.973366] kmalloc_node_oob_right+0xbc/0x330 [ 20.973428] kunit_try_run_case+0x170/0x3f0 [ 20.973473] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.973520] kthread+0x328/0x630 [ 20.973556] ret_from_fork+0x10/0x20 [ 20.973594] [ 20.973617] The buggy address belongs to the object at fff00000c78b0000 [ 20.973617] which belongs to the cache kmalloc-4k of size 4096 [ 20.973683] The buggy address is located 0 bytes to the right of [ 20.973683] allocated 4096-byte region [fff00000c78b0000, fff00000c78b1000) [ 20.973751] [ 20.973777] The buggy address belongs to the physical page: [ 20.973888] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0 [ 20.974088] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 20.974146] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 20.974227] page_type: f5(slab) [ 20.974282] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 20.974339] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 20.974996] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 20.975119] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 20.975229] head: 0bfffe0000000003 ffffc1ffc31e2c01 00000000ffffffff 00000000ffffffff [ 20.975343] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 20.975457] page dumped because: kasan: bad access detected [ 20.975526] [ 20.975567] Memory state around the buggy address: [ 20.975639] fff00000c78b0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.975832] fff00000c78b0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.975964] >fff00000c78b1000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.976059] ^ [ 20.976126] fff00000c78b1080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.976230] fff00000c78b1100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.976327] ==================================================================
[ 10.280748] ================================================================== [ 10.281386] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 10.281658] Read of size 1 at addr ffff88810294f000 by task kunit_try_catch/157 [ 10.281895] [ 10.282154] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.282203] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.282215] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.282236] Call Trace: [ 10.282250] <TASK> [ 10.282267] dump_stack_lvl+0x73/0xb0 [ 10.282295] print_report+0xd1/0x650 [ 10.282329] ? __virt_addr_valid+0x1db/0x2d0 [ 10.282353] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.282376] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.282410] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.282434] kasan_report+0x141/0x180 [ 10.282456] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.282484] __asan_report_load1_noabort+0x18/0x20 [ 10.282504] kmalloc_node_oob_right+0x369/0x3c0 [ 10.282541] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 10.282566] ? __schedule+0x10cc/0x2b60 [ 10.282600] ? __pfx_read_tsc+0x10/0x10 [ 10.282631] ? ktime_get_ts64+0x86/0x230 [ 10.282655] kunit_try_run_case+0x1a5/0x480 [ 10.282677] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.282697] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.282729] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.282753] ? __kthread_parkme+0x82/0x180 [ 10.282774] ? preempt_count_sub+0x50/0x80 [ 10.282936] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.282965] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.283002] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.283027] kthread+0x337/0x6f0 [ 10.283046] ? trace_preempt_on+0x20/0xc0 [ 10.283069] ? __pfx_kthread+0x10/0x10 [ 10.283089] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.283111] ? calculate_sigpending+0x7b/0xa0 [ 10.283135] ? __pfx_kthread+0x10/0x10 [ 10.283156] ret_from_fork+0x116/0x1d0 [ 10.283174] ? __pfx_kthread+0x10/0x10 [ 10.283194] ret_from_fork_asm+0x1a/0x30 [ 10.283224] </TASK> [ 10.283235] [ 10.298030] Allocated by task 157: [ 10.298317] kasan_save_stack+0x45/0x70 [ 10.298475] kasan_save_track+0x18/0x40 [ 10.298628] kasan_save_alloc_info+0x3b/0x50 [ 10.298784] __kasan_kmalloc+0xb7/0xc0 [ 10.299295] __kmalloc_cache_node_noprof+0x188/0x420 [ 10.299886] kmalloc_node_oob_right+0xab/0x3c0 [ 10.300401] kunit_try_run_case+0x1a5/0x480 [ 10.300860] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.301494] kthread+0x337/0x6f0 [ 10.301921] ret_from_fork+0x116/0x1d0 [ 10.302352] ret_from_fork_asm+0x1a/0x30 [ 10.302795] [ 10.302970] The buggy address belongs to the object at ffff88810294e000 [ 10.302970] which belongs to the cache kmalloc-4k of size 4096 [ 10.304262] The buggy address is located 0 bytes to the right of [ 10.304262] allocated 4096-byte region [ffff88810294e000, ffff88810294f000) [ 10.304659] [ 10.304735] The buggy address belongs to the physical page: [ 10.305400] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102948 [ 10.306593] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.307260] flags: 0x200000000000040(head|node=0|zone=2) [ 10.307693] page_type: f5(slab) [ 10.308025] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.308712] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.309211] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.309456] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.309707] head: 0200000000000003 ffffea00040a5201 00000000ffffffff 00000000ffffffff [ 10.310548] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.311407] page dumped because: kasan: bad access detected [ 10.311948] [ 10.312180] Memory state around the buggy address: [ 10.312716] ffff88810294ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.313464] ffff88810294ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.314082] >ffff88810294f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.314308] ^ [ 10.314431] ffff88810294f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.314678] ffff88810294f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.315059] ==================================================================