Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.862929] ================================================================== [ 17.862993] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.863041] Write of size 1 at addr fff00000c7821f00 by task kunit_try_catch/144 [ 17.863087] [ 17.863136] CPU: 0 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.863227] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.863251] Hardware name: linux,dummy-virt (DT) [ 17.863281] Call trace: [ 17.863674] show_stack+0x20/0x38 (C) [ 17.863762] dump_stack_lvl+0x8c/0xd0 [ 17.863806] print_report+0x118/0x608 [ 17.863849] kasan_report+0xdc/0x128 [ 17.864148] __asan_report_store1_noabort+0x20/0x30 [ 17.864211] kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.864475] kunit_try_run_case+0x170/0x3f0 [ 17.864542] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.864698] kthread+0x328/0x630 [ 17.864749] ret_from_fork+0x10/0x20 [ 17.864878] [ 17.864951] Allocated by task 144: [ 17.865030] kasan_save_stack+0x3c/0x68 [ 17.865166] kasan_save_track+0x20/0x40 [ 17.865243] kasan_save_alloc_info+0x40/0x58 [ 17.865334] __kasan_kmalloc+0xd4/0xd8 [ 17.865420] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.865469] kmalloc_big_oob_right+0xb8/0x2f0 [ 17.865547] kunit_try_run_case+0x170/0x3f0 [ 17.865583] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.865627] kthread+0x328/0x630 [ 17.865659] ret_from_fork+0x10/0x20 [ 17.865948] [ 17.866013] The buggy address belongs to the object at fff00000c7820000 [ 17.866013] which belongs to the cache kmalloc-8k of size 8192 [ 17.866137] The buggy address is located 0 bytes to the right of [ 17.866137] allocated 7936-byte region [fff00000c7820000, fff00000c7821f00) [ 17.866278] [ 17.866316] The buggy address belongs to the physical page: [ 17.866349] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107820 [ 17.866511] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.866635] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.866764] page_type: f5(slab) [ 17.866871] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.866982] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.867115] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.867281] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.867462] head: 0bfffe0000000003 ffffc1ffc31e0801 00000000ffffffff 00000000ffffffff [ 17.867576] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 17.867615] page dumped because: kasan: bad access detected [ 17.867645] [ 17.867663] Memory state around the buggy address: [ 17.867722] fff00000c7821e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.867939] fff00000c7821e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.868168] >fff00000c7821f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.868330] ^ [ 17.868364] fff00000c7821f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.868404] fff00000c7822000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.868460] ==================================================================
[ 12.887336] ================================================================== [ 12.887913] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 12.888366] Write of size 1 at addr ffff888103999f00 by task kunit_try_catch/162 [ 12.889050] [ 12.889370] CPU: 0 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.889426] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.889440] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.889464] Call Trace: [ 12.889481] <TASK> [ 12.889502] dump_stack_lvl+0x73/0xb0 [ 12.889540] print_report+0xd1/0x650 [ 12.889566] ? __virt_addr_valid+0x1db/0x2d0 [ 12.889593] ? kmalloc_big_oob_right+0x316/0x370 [ 12.889617] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.889642] ? kmalloc_big_oob_right+0x316/0x370 [ 12.889666] kasan_report+0x141/0x180 [ 12.889691] ? kmalloc_big_oob_right+0x316/0x370 [ 12.889721] __asan_report_store1_noabort+0x1b/0x30 [ 12.889744] kmalloc_big_oob_right+0x316/0x370 [ 12.889768] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 12.889806] ? __schedule+0x10cc/0x2b60 [ 12.889831] ? __pfx_read_tsc+0x10/0x10 [ 12.889855] ? ktime_get_ts64+0x86/0x230 [ 12.889882] kunit_try_run_case+0x1a5/0x480 [ 12.889909] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.889933] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.889959] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.889984] ? __kthread_parkme+0x82/0x180 [ 12.890008] ? preempt_count_sub+0x50/0x80 [ 12.890034] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.890060] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.890085] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.890109] kthread+0x337/0x6f0 [ 12.890130] ? trace_preempt_on+0x20/0xc0 [ 12.890156] ? __pfx_kthread+0x10/0x10 [ 12.890179] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.890202] ? calculate_sigpending+0x7b/0xa0 [ 12.890231] ? __pfx_kthread+0x10/0x10 [ 12.890254] ret_from_fork+0x116/0x1d0 [ 12.890275] ? __pfx_kthread+0x10/0x10 [ 12.890297] ret_from_fork_asm+0x1a/0x30 [ 12.890332] </TASK> [ 12.890345] [ 12.901060] Allocated by task 162: [ 12.901395] kasan_save_stack+0x45/0x70 [ 12.901849] kasan_save_track+0x18/0x40 [ 12.902176] kasan_save_alloc_info+0x3b/0x50 [ 12.902603] __kasan_kmalloc+0xb7/0xc0 [ 12.902815] __kmalloc_cache_noprof+0x189/0x420 [ 12.903067] kmalloc_big_oob_right+0xa9/0x370 [ 12.903251] kunit_try_run_case+0x1a5/0x480 [ 12.903908] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.904331] kthread+0x337/0x6f0 [ 12.904509] ret_from_fork+0x116/0x1d0 [ 12.904717] ret_from_fork_asm+0x1a/0x30 [ 12.904986] [ 12.905140] The buggy address belongs to the object at ffff888103998000 [ 12.905140] which belongs to the cache kmalloc-8k of size 8192 [ 12.905934] The buggy address is located 0 bytes to the right of [ 12.905934] allocated 7936-byte region [ffff888103998000, ffff888103999f00) [ 12.907113] [ 12.907262] The buggy address belongs to the physical page: [ 12.907471] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103998 [ 12.907755] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.908347] flags: 0x200000000000040(head|node=0|zone=2) [ 12.908560] page_type: f5(slab) [ 12.908704] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 12.910149] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 12.911482] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 12.912752] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 12.913971] head: 0200000000000003 ffffea00040e6601 00000000ffffffff 00000000ffffffff [ 12.914938] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.915222] page dumped because: kasan: bad access detected [ 12.915418] [ 12.915500] Memory state around the buggy address: [ 12.915679] ffff888103999e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.916858] ffff888103999e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.917922] >ffff888103999f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.919517] ^ [ 12.920068] ffff888103999f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.921115] ffff88810399a000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.922111] ==================================================================