Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.863784] ================================================================== [ 17.863849] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.863900] Write of size 1 at addr fff00000c6585f00 by task kunit_try_catch/144 [ 17.864706] [ 17.864784] CPU: 1 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.864885] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.865070] Hardware name: linux,dummy-virt (DT) [ 17.865398] Call trace: [ 17.865428] show_stack+0x20/0x38 (C) [ 17.865480] dump_stack_lvl+0x8c/0xd0 [ 17.865526] print_report+0x118/0x608 [ 17.866281] kasan_report+0xdc/0x128 [ 17.866447] __asan_report_store1_noabort+0x20/0x30 [ 17.866529] kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.866586] kunit_try_run_case+0x170/0x3f0 [ 17.866704] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.867214] kthread+0x328/0x630 [ 17.867328] ret_from_fork+0x10/0x20 [ 17.867545] [ 17.867598] Allocated by task 144: [ 17.867627] kasan_save_stack+0x3c/0x68 [ 17.867996] kasan_save_track+0x20/0x40 [ 17.868043] kasan_save_alloc_info+0x40/0x58 [ 17.868083] __kasan_kmalloc+0xd4/0xd8 [ 17.868256] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.868632] kmalloc_big_oob_right+0xb8/0x2f0 [ 17.868822] kunit_try_run_case+0x170/0x3f0 [ 17.868882] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.868926] kthread+0x328/0x630 [ 17.868958] ret_from_fork+0x10/0x20 [ 17.869150] [ 17.869184] The buggy address belongs to the object at fff00000c6584000 [ 17.869184] which belongs to the cache kmalloc-8k of size 8192 [ 17.869477] The buggy address is located 0 bytes to the right of [ 17.869477] allocated 7936-byte region [fff00000c6584000, fff00000c6585f00) [ 17.869540] [ 17.869561] The buggy address belongs to the physical page: [ 17.870032] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106580 [ 17.870094] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.870139] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.870192] page_type: f5(slab) [ 17.870726] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.870909] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.872414] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.872471] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.872518] head: 0bfffe0000000003 ffffc1ffc3196001 00000000ffffffff 00000000ffffffff [ 17.872565] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 17.872986] page dumped because: kasan: bad access detected [ 17.873021] [ 17.873248] Memory state around the buggy address: [ 17.873335] fff00000c6585e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.873394] fff00000c6585e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.873544] >fff00000c6585f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.873719] ^ [ 17.873907] fff00000c6585f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.874082] fff00000c6586000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.874314] ==================================================================
[ 10.871007] ================================================================== [ 10.871439] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 10.871713] Write of size 1 at addr ffff888101f95f00 by task kunit_try_catch/163 [ 10.872161] [ 10.872268] CPU: 0 UID: 0 PID: 163 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.872312] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.872323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.872343] Call Trace: [ 10.872356] <TASK> [ 10.872374] dump_stack_lvl+0x73/0xb0 [ 10.872417] print_report+0xd1/0x650 [ 10.872442] ? __virt_addr_valid+0x1db/0x2d0 [ 10.872477] ? kmalloc_big_oob_right+0x316/0x370 [ 10.872498] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.872518] ? kmalloc_big_oob_right+0x316/0x370 [ 10.872550] kasan_report+0x141/0x180 [ 10.872647] ? kmalloc_big_oob_right+0x316/0x370 [ 10.872677] __asan_report_store1_noabort+0x1b/0x30 [ 10.872696] kmalloc_big_oob_right+0x316/0x370 [ 10.872717] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 10.872738] ? __schedule+0x10cc/0x2b60 [ 10.872759] ? __pfx_read_tsc+0x10/0x10 [ 10.872780] ? ktime_get_ts64+0x86/0x230 [ 10.872805] kunit_try_run_case+0x1a5/0x480 [ 10.872829] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.872849] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.872872] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.872892] ? __kthread_parkme+0x82/0x180 [ 10.872912] ? preempt_count_sub+0x50/0x80 [ 10.872936] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.872957] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.872978] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.873012] kthread+0x337/0x6f0 [ 10.873030] ? trace_preempt_on+0x20/0xc0 [ 10.873053] ? __pfx_kthread+0x10/0x10 [ 10.873084] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.873103] ? calculate_sigpending+0x7b/0xa0 [ 10.873127] ? __pfx_kthread+0x10/0x10 [ 10.873146] ret_from_fork+0x116/0x1d0 [ 10.873164] ? __pfx_kthread+0x10/0x10 [ 10.873182] ret_from_fork_asm+0x1a/0x30 [ 10.873212] </TASK> [ 10.873223] [ 10.883753] Allocated by task 163: [ 10.884160] kasan_save_stack+0x45/0x70 [ 10.884582] kasan_save_track+0x18/0x40 [ 10.885001] kasan_save_alloc_info+0x3b/0x50 [ 10.885388] __kasan_kmalloc+0xb7/0xc0 [ 10.885723] __kmalloc_cache_noprof+0x189/0x420 [ 10.886258] kmalloc_big_oob_right+0xa9/0x370 [ 10.886718] kunit_try_run_case+0x1a5/0x480 [ 10.887200] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.887752] kthread+0x337/0x6f0 [ 10.888149] ret_from_fork+0x116/0x1d0 [ 10.888555] ret_from_fork_asm+0x1a/0x30 [ 10.888951] [ 10.889118] The buggy address belongs to the object at ffff888101f94000 [ 10.889118] which belongs to the cache kmalloc-8k of size 8192 [ 10.890193] The buggy address is located 0 bytes to the right of [ 10.890193] allocated 7936-byte region [ffff888101f94000, ffff888101f95f00) [ 10.891479] [ 10.891638] The buggy address belongs to the physical page: [ 10.892206] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101f90 [ 10.892988] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.893569] flags: 0x200000000000040(head|node=0|zone=2) [ 10.893809] page_type: f5(slab) [ 10.894123] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.894563] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.894805] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.895141] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.895365] head: 0200000000000003 ffffea000407e401 00000000ffffffff 00000000ffffffff [ 10.895614] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.895858] page dumped because: kasan: bad access detected [ 10.896029] [ 10.896097] Memory state around the buggy address: [ 10.896248] ffff888101f95e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.896467] ffff888101f95e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.896767] >ffff888101f95f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.897029] ^ [ 10.897224] ffff888101f95f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.897472] ffff888101f96000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.898057] ==================================================================