Date
July 12, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.412063] ================================================================== [ 16.412129] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 16.412193] Read of size 1 at addr fff00000c7929000 by task kunit_try_catch/140 [ 16.412242] [ 16.412271] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.412877] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.412905] Hardware name: linux,dummy-virt (DT) [ 16.412935] Call trace: [ 16.412956] show_stack+0x20/0x38 (C) [ 16.413005] dump_stack_lvl+0x8c/0xd0 [ 16.413050] print_report+0x118/0x5d0 [ 16.413103] kasan_report+0xdc/0x128 [ 16.413317] __asan_report_load1_noabort+0x20/0x30 [ 16.413468] kmalloc_node_oob_right+0x2f4/0x330 [ 16.413726] kunit_try_run_case+0x170/0x3f0 [ 16.413958] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.414132] kthread+0x328/0x630 [ 16.414208] ret_from_fork+0x10/0x20 [ 16.414387] [ 16.414406] Allocated by task 140: [ 16.414433] kasan_save_stack+0x3c/0x68 [ 16.414480] kasan_save_track+0x20/0x40 [ 16.414584] kasan_save_alloc_info+0x40/0x58 [ 16.414625] __kasan_kmalloc+0xd4/0xd8 [ 16.414660] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 16.414700] kmalloc_node_oob_right+0xbc/0x330 [ 16.414737] kunit_try_run_case+0x170/0x3f0 [ 16.414772] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.414814] kthread+0x328/0x630 [ 16.414854] ret_from_fork+0x10/0x20 [ 16.414889] [ 16.414908] The buggy address belongs to the object at fff00000c7928000 [ 16.414908] which belongs to the cache kmalloc-4k of size 4096 [ 16.415256] The buggy address is located 0 bytes to the right of [ 16.415256] allocated 4096-byte region [fff00000c7928000, fff00000c7929000) [ 16.415408] [ 16.415480] The buggy address belongs to the physical page: [ 16.415972] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107928 [ 16.416486] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.416743] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.416849] page_type: f5(slab) [ 16.416997] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.417048] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.417135] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 16.417196] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 16.417268] head: 0bfffe0000000003 ffffc1ffc31e4a01 00000000ffffffff 00000000ffffffff [ 16.417320] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 16.417364] page dumped because: kasan: bad access detected [ 16.417634] [ 16.417655] Memory state around the buggy address: [ 16.417687] fff00000c7928f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.417989] fff00000c7928f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.418035] >fff00000c7929000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.418482] ^ [ 16.418560] fff00000c7929080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.418603] fff00000c7929100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.418679] ==================================================================
[ 12.275231] ================================================================== [ 12.275682] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.275975] Read of size 1 at addr ffff8881039fb000 by task kunit_try_catch/157 [ 12.276297] [ 12.276682] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.276729] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.276741] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.276763] Call Trace: [ 12.276775] <TASK> [ 12.276791] dump_stack_lvl+0x73/0xb0 [ 12.276824] print_report+0xd1/0x610 [ 12.276847] ? __virt_addr_valid+0x1db/0x2d0 [ 12.276872] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.276896] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.276919] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.276943] kasan_report+0x141/0x180 [ 12.276965] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.277009] __asan_report_load1_noabort+0x18/0x20 [ 12.277034] kmalloc_node_oob_right+0x369/0x3c0 [ 12.277060] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.277085] ? __schedule+0x10cc/0x2b60 [ 12.277107] ? __pfx_read_tsc+0x10/0x10 [ 12.277129] ? ktime_get_ts64+0x86/0x230 [ 12.277156] kunit_try_run_case+0x1a5/0x480 [ 12.277182] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.277205] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.277230] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.277254] ? __kthread_parkme+0x82/0x180 [ 12.277289] ? preempt_count_sub+0x50/0x80 [ 12.277314] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.277338] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.277362] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.277388] kthread+0x337/0x6f0 [ 12.277406] ? trace_preempt_on+0x20/0xc0 [ 12.277431] ? __pfx_kthread+0x10/0x10 [ 12.277451] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.277473] ? calculate_sigpending+0x7b/0xa0 [ 12.277498] ? __pfx_kthread+0x10/0x10 [ 12.277519] ret_from_fork+0x116/0x1d0 [ 12.277538] ? __pfx_kthread+0x10/0x10 [ 12.277558] ret_from_fork_asm+0x1a/0x30 [ 12.277590] </TASK> [ 12.277600] [ 12.287685] Allocated by task 157: [ 12.287874] kasan_save_stack+0x45/0x70 [ 12.288064] kasan_save_track+0x18/0x40 [ 12.288226] kasan_save_alloc_info+0x3b/0x50 [ 12.288453] __kasan_kmalloc+0xb7/0xc0 [ 12.288649] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.288865] kmalloc_node_oob_right+0xab/0x3c0 [ 12.289076] kunit_try_run_case+0x1a5/0x480 [ 12.290016] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.290499] kthread+0x337/0x6f0 [ 12.290719] ret_from_fork+0x116/0x1d0 [ 12.290857] ret_from_fork_asm+0x1a/0x30 [ 12.291005] [ 12.291078] The buggy address belongs to the object at ffff8881039fa000 [ 12.291078] which belongs to the cache kmalloc-4k of size 4096 [ 12.291445] The buggy address is located 0 bytes to the right of [ 12.291445] allocated 4096-byte region [ffff8881039fa000, ffff8881039fb000) [ 12.291814] [ 12.291886] The buggy address belongs to the physical page: [ 12.292120] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f8 [ 12.292750] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.293500] flags: 0x200000000000040(head|node=0|zone=2) [ 12.294110] page_type: f5(slab) [ 12.294442] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.295214] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.295987] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.296790] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.297530] head: 0200000000000003 ffffea00040e7e01 00000000ffffffff 00000000ffffffff [ 12.298321] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.299204] page dumped because: kasan: bad access detected [ 12.299749] [ 12.299935] Memory state around the buggy address: [ 12.300441] ffff8881039faf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.301232] ffff8881039faf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.301869] >ffff8881039fb000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.302686] ^ [ 12.303026] ffff8881039fb080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.303649] ffff8881039fb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.304243] ==================================================================