Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.081519] ================================================================== [ 15.081578] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 15.081647] Read of size 1 at addr fff00000c5c8d000 by task kunit_try_catch/140 [ 15.081699] [ 15.081727] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 15.081811] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.081847] Hardware name: linux,dummy-virt (DT) [ 15.081890] Call trace: [ 15.081911] show_stack+0x20/0x38 (C) [ 15.081960] dump_stack_lvl+0x8c/0xd0 [ 15.082006] print_report+0x118/0x5d0 [ 15.082052] kasan_report+0xdc/0x128 [ 15.082096] __asan_report_load1_noabort+0x20/0x30 [ 15.082146] kmalloc_node_oob_right+0x2f4/0x330 [ 15.082193] kunit_try_run_case+0x170/0x3f0 [ 15.082668] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.082805] kthread+0x328/0x630 [ 15.082891] ret_from_fork+0x10/0x20 [ 15.083041] [ 15.083069] Allocated by task 140: [ 15.083098] kasan_save_stack+0x3c/0x68 [ 15.083139] kasan_save_track+0x20/0x40 [ 15.083176] kasan_save_alloc_info+0x40/0x58 [ 15.083214] __kasan_kmalloc+0xd4/0xd8 [ 15.083267] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 15.083308] kmalloc_node_oob_right+0xbc/0x330 [ 15.083346] kunit_try_run_case+0x170/0x3f0 [ 15.083486] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.083698] kthread+0x328/0x630 [ 15.083770] ret_from_fork+0x10/0x20 [ 15.083818] [ 15.083926] The buggy address belongs to the object at fff00000c5c8c000 [ 15.083926] which belongs to the cache kmalloc-4k of size 4096 [ 15.084062] The buggy address is located 0 bytes to the right of [ 15.084062] allocated 4096-byte region [fff00000c5c8c000, fff00000c5c8d000) [ 15.084207] [ 15.084255] The buggy address belongs to the physical page: [ 15.084494] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105c88 [ 15.085497] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.085601] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.085713] page_type: f5(slab) [ 15.085951] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 15.086237] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 15.086375] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 15.086593] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 15.086756] head: 0bfffe0000000003 ffffc1ffc3172201 00000000ffffffff 00000000ffffffff [ 15.086911] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 15.086977] page dumped because: kasan: bad access detected [ 15.087009] [ 15.087180] Memory state around the buggy address: [ 15.087216] fff00000c5c8cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.087259] fff00000c5c8cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.087557] >fff00000c5c8d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.087626] ^ [ 15.087836] fff00000c5c8d080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.087920] fff00000c5c8d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.088032] ==================================================================
[ 12.070254] ================================================================== [ 12.070849] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.071291] Read of size 1 at addr ffff888102903000 by task kunit_try_catch/157 [ 12.071531] [ 12.071651] CPU: 0 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 12.071693] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.071704] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.071725] Call Trace: [ 12.071736] <TASK> [ 12.071749] dump_stack_lvl+0x73/0xb0 [ 12.071778] print_report+0xd1/0x610 [ 12.071799] ? __virt_addr_valid+0x1db/0x2d0 [ 12.071835] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.071858] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.071879] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.071902] kasan_report+0x141/0x180 [ 12.071924] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.071951] __asan_report_load1_noabort+0x18/0x20 [ 12.071974] kmalloc_node_oob_right+0x369/0x3c0 [ 12.071998] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.072021] ? __schedule+0x10c6/0x2b60 [ 12.072043] ? __pfx_read_tsc+0x10/0x10 [ 12.072063] ? ktime_get_ts64+0x86/0x230 [ 12.072087] kunit_try_run_case+0x1a5/0x480 [ 12.072111] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.072133] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.072156] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.072178] ? __kthread_parkme+0x82/0x180 [ 12.072198] ? preempt_count_sub+0x50/0x80 [ 12.072236] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.072260] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.072282] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.072305] kthread+0x337/0x6f0 [ 12.072324] ? trace_preempt_on+0x20/0xc0 [ 12.072346] ? __pfx_kthread+0x10/0x10 [ 12.072366] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.072387] ? calculate_sigpending+0x7b/0xa0 [ 12.072410] ? __pfx_kthread+0x10/0x10 [ 12.072430] ret_from_fork+0x116/0x1d0 [ 12.072448] ? __pfx_kthread+0x10/0x10 [ 12.072468] ret_from_fork_asm+0x1a/0x30 [ 12.072497] </TASK> [ 12.072507] [ 12.083462] Allocated by task 157: [ 12.083611] kasan_save_stack+0x45/0x70 [ 12.084014] kasan_save_track+0x18/0x40 [ 12.084364] kasan_save_alloc_info+0x3b/0x50 [ 12.084725] __kasan_kmalloc+0xb7/0xc0 [ 12.085021] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.085240] kmalloc_node_oob_right+0xab/0x3c0 [ 12.085717] kunit_try_run_case+0x1a5/0x480 [ 12.085919] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.086483] kthread+0x337/0x6f0 [ 12.086755] ret_from_fork+0x116/0x1d0 [ 12.086942] ret_from_fork_asm+0x1a/0x30 [ 12.087379] [ 12.087578] The buggy address belongs to the object at ffff888102902000 [ 12.087578] which belongs to the cache kmalloc-4k of size 4096 [ 12.088114] The buggy address is located 0 bytes to the right of [ 12.088114] allocated 4096-byte region [ffff888102902000, ffff888102903000) [ 12.088503] [ 12.088580] The buggy address belongs to the physical page: [ 12.088832] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102900 [ 12.089367] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.089989] flags: 0x200000000000040(head|node=0|zone=2) [ 12.090653] page_type: f5(slab) [ 12.091071] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.091752] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.092232] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.092875] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.093236] head: 0200000000000003 ffffea00040a4001 00000000ffffffff 00000000ffffffff [ 12.094027] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.094949] page dumped because: kasan: bad access detected [ 12.095329] [ 12.095580] Memory state around the buggy address: [ 12.096071] ffff888102902f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.096547] ffff888102902f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.097275] >ffff888102903000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.097761] ^ [ 12.097894] ffff888102903080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.098120] ffff888102903100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.098335] ==================================================================