Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.388571] ================================================================== [ 16.388742] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 16.388816] Read of size 1 at addr fff00000c65d7000 by task kunit_try_catch/140 [ 16.388901] [ 16.389032] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.389156] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.389189] Hardware name: linux,dummy-virt (DT) [ 16.389219] Call trace: [ 16.389242] show_stack+0x20/0x38 (C) [ 16.389294] dump_stack_lvl+0x8c/0xd0 [ 16.389343] print_report+0x118/0x5d0 [ 16.389389] kasan_report+0xdc/0x128 [ 16.389434] __asan_report_load1_noabort+0x20/0x30 [ 16.389484] kmalloc_node_oob_right+0x2f4/0x330 [ 16.389581] kunit_try_run_case+0x170/0x3f0 [ 16.389641] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.389702] kthread+0x328/0x630 [ 16.389983] ret_from_fork+0x10/0x20 [ 16.390093] [ 16.390208] Allocated by task 140: [ 16.390403] kasan_save_stack+0x3c/0x68 [ 16.390560] kasan_save_track+0x20/0x40 [ 16.390619] kasan_save_alloc_info+0x40/0x58 [ 16.390676] __kasan_kmalloc+0xd4/0xd8 [ 16.390733] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 16.390815] kmalloc_node_oob_right+0xbc/0x330 [ 16.390883] kunit_try_run_case+0x170/0x3f0 [ 16.390939] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.391126] kthread+0x328/0x630 [ 16.391185] ret_from_fork+0x10/0x20 [ 16.391267] [ 16.391300] The buggy address belongs to the object at fff00000c65d6000 [ 16.391300] which belongs to the cache kmalloc-4k of size 4096 [ 16.391457] The buggy address is located 0 bytes to the right of [ 16.391457] allocated 4096-byte region [fff00000c65d6000, fff00000c65d7000) [ 16.391651] [ 16.391769] The buggy address belongs to the physical page: [ 16.391986] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065d0 [ 16.392203] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.392610] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.392844] page_type: f5(slab) [ 16.392981] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.393102] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.393334] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.393421] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.393597] head: 0bfffe0000000003 ffffc1ffc3197401 00000000ffffffff 00000000ffffffff [ 16.393683] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 16.393861] page dumped because: kasan: bad access detected [ 16.394005] [ 16.394053] Memory state around the buggy address: [ 16.394102] fff00000c65d6f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.394194] fff00000c65d6f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.394320] >fff00000c65d7000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.394359] ^ [ 16.394393] fff00000c65d7080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.394549] fff00000c65d7100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.394614] ==================================================================
[ 11.945304] ================================================================== [ 11.945844] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 11.946174] Read of size 1 at addr ffff8881029f3000 by task kunit_try_catch/157 [ 11.946471] [ 11.946583] CPU: 0 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.946626] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.946637] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.946657] Call Trace: [ 11.946668] <TASK> [ 11.946682] dump_stack_lvl+0x73/0xb0 [ 11.946710] print_report+0xd1/0x610 [ 11.946731] ? __virt_addr_valid+0x1db/0x2d0 [ 11.946791] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.946818] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.946842] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.947248] kasan_report+0x141/0x180 [ 11.947279] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.947341] __asan_report_load1_noabort+0x18/0x20 [ 11.947367] kmalloc_node_oob_right+0x369/0x3c0 [ 11.947392] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 11.947567] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 11.947603] kunit_try_run_case+0x1a5/0x480 [ 11.947632] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.947655] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.947680] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.947704] ? __kthread_parkme+0x82/0x180 [ 11.947727] ? preempt_count_sub+0x50/0x80 [ 11.947765] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.947789] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.947814] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.947839] kthread+0x337/0x6f0 [ 11.947859] ? trace_preempt_on+0x20/0xc0 [ 11.947882] ? __pfx_kthread+0x10/0x10 [ 11.947903] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.947924] ? calculate_sigpending+0x7b/0xa0 [ 11.947949] ? __pfx_kthread+0x10/0x10 [ 11.947992] ret_from_fork+0x116/0x1d0 [ 11.948012] ? __pfx_kthread+0x10/0x10 [ 11.948032] ret_from_fork_asm+0x1a/0x30 [ 11.948063] </TASK> [ 11.948073] [ 11.958663] Allocated by task 157: [ 11.958957] kasan_save_stack+0x45/0x70 [ 11.959305] kasan_save_track+0x18/0x40 [ 11.959564] kasan_save_alloc_info+0x3b/0x50 [ 11.959795] __kasan_kmalloc+0xb7/0xc0 [ 11.960210] __kmalloc_cache_node_noprof+0x188/0x420 [ 11.960482] kmalloc_node_oob_right+0xab/0x3c0 [ 11.960815] kunit_try_run_case+0x1a5/0x480 [ 11.961236] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.961606] kthread+0x337/0x6f0 [ 11.961820] ret_from_fork+0x116/0x1d0 [ 11.961958] ret_from_fork_asm+0x1a/0x30 [ 11.962389] [ 11.962615] The buggy address belongs to the object at ffff8881029f2000 [ 11.962615] which belongs to the cache kmalloc-4k of size 4096 [ 11.963284] The buggy address is located 0 bytes to the right of [ 11.963284] allocated 4096-byte region [ffff8881029f2000, ffff8881029f3000) [ 11.964183] [ 11.964292] The buggy address belongs to the physical page: [ 11.964703] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f0 [ 11.965548] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.965888] flags: 0x200000000000040(head|node=0|zone=2) [ 11.966353] page_type: f5(slab) [ 11.966666] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 11.967188] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 11.967687] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 11.968167] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 11.968645] head: 0200000000000003 ffffea00040a7c01 00000000ffffffff 00000000ffffffff [ 11.969261] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 11.969749] page dumped because: kasan: bad access detected [ 11.970115] [ 11.970367] Memory state around the buggy address: [ 11.970716] ffff8881029f2f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.971160] ffff8881029f2f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.971599] >ffff8881029f3000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.972053] ^ [ 11.972182] ffff8881029f3080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.972547] ffff8881029f3100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.972842] ==================================================================