Date
July 3, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.252203] ================================================================== [ 19.252345] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 19.252672] Write of size 1 at addr fff00000c65bdf00 by task kunit_try_catch/144 [ 19.252990] [ 19.253094] CPU: 0 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.253392] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.253653] Hardware name: linux,dummy-virt (DT) [ 19.253783] Call trace: [ 19.253874] show_stack+0x20/0x38 (C) [ 19.254000] dump_stack_lvl+0x8c/0xd0 [ 19.254134] print_report+0x118/0x608 [ 19.254253] kasan_report+0xdc/0x128 [ 19.254382] __asan_report_store1_noabort+0x20/0x30 [ 19.254493] kmalloc_big_oob_right+0x2a4/0x2f0 [ 19.254588] kunit_try_run_case+0x170/0x3f0 [ 19.254673] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.254791] kthread+0x328/0x630 [ 19.254935] ret_from_fork+0x10/0x20 [ 19.255247] [ 19.255312] Allocated by task 144: [ 19.255418] kasan_save_stack+0x3c/0x68 [ 19.255521] kasan_save_track+0x20/0x40 [ 19.255633] kasan_save_alloc_info+0x40/0x58 [ 19.255722] __kasan_kmalloc+0xd4/0xd8 [ 19.255806] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.255900] kmalloc_big_oob_right+0xb8/0x2f0 [ 19.255988] kunit_try_run_case+0x170/0x3f0 [ 19.256083] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.256189] kthread+0x328/0x630 [ 19.256271] ret_from_fork+0x10/0x20 [ 19.256366] [ 19.256411] The buggy address belongs to the object at fff00000c65bc000 [ 19.256411] which belongs to the cache kmalloc-8k of size 8192 [ 19.256545] The buggy address is located 0 bytes to the right of [ 19.256545] allocated 7936-byte region [fff00000c65bc000, fff00000c65bdf00) [ 19.256701] [ 19.256761] The buggy address belongs to the physical page: [ 19.256838] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065b8 [ 19.256957] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.257570] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.257861] page_type: f5(slab) [ 19.257949] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 19.258067] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 19.258172] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 19.258400] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 19.258632] head: 0bfffe0000000003 ffffc1ffc3196e01 00000000ffffffff 00000000ffffffff [ 19.258750] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 19.258835] page dumped because: kasan: bad access detected [ 19.258906] [ 19.258947] Memory state around the buggy address: [ 19.259056] fff00000c65bde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.259190] fff00000c65bde80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.259285] >fff00000c65bdf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.259371] ^ [ 19.259429] fff00000c65bdf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.259522] fff00000c65be000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.259608] ==================================================================
[ 10.978156] ================================================================== [ 10.979099] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 10.979401] Write of size 1 at addr ffff8881038f9f00 by task kunit_try_catch/161 [ 10.979788] [ 10.980142] CPU: 0 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.980189] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.980201] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.980221] Call Trace: [ 10.980232] <TASK> [ 10.980247] dump_stack_lvl+0x73/0xb0 [ 10.980276] print_report+0xd1/0x650 [ 10.980297] ? __virt_addr_valid+0x1db/0x2d0 [ 10.980337] ? kmalloc_big_oob_right+0x316/0x370 [ 10.980358] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.980379] ? kmalloc_big_oob_right+0x316/0x370 [ 10.980400] kasan_report+0x141/0x180 [ 10.980420] ? kmalloc_big_oob_right+0x316/0x370 [ 10.980446] __asan_report_store1_noabort+0x1b/0x30 [ 10.980466] kmalloc_big_oob_right+0x316/0x370 [ 10.980487] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 10.980508] ? __schedule+0x10cc/0x2b60 [ 10.980529] ? __pfx_read_tsc+0x10/0x10 [ 10.980550] ? ktime_get_ts64+0x86/0x230 [ 10.980573] kunit_try_run_case+0x1a5/0x480 [ 10.980597] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.980618] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.980639] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.980660] ? __kthread_parkme+0x82/0x180 [ 10.980680] ? preempt_count_sub+0x50/0x80 [ 10.980702] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.980724] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.980745] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.980767] kthread+0x337/0x6f0 [ 10.980785] ? trace_preempt_on+0x20/0xc0 [ 10.980807] ? __pfx_kthread+0x10/0x10 [ 10.980826] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.980846] ? calculate_sigpending+0x7b/0xa0 [ 10.980868] ? __pfx_kthread+0x10/0x10 [ 10.980889] ret_from_fork+0x116/0x1d0 [ 10.980906] ? __pfx_kthread+0x10/0x10 [ 10.980925] ret_from_fork_asm+0x1a/0x30 [ 10.980954] </TASK> [ 10.980965] [ 10.988146] Allocated by task 161: [ 10.988298] kasan_save_stack+0x45/0x70 [ 10.988498] kasan_save_track+0x18/0x40 [ 10.988634] kasan_save_alloc_info+0x3b/0x50 [ 10.988782] __kasan_kmalloc+0xb7/0xc0 [ 10.988967] __kmalloc_cache_noprof+0x189/0x420 [ 10.989282] kmalloc_big_oob_right+0xa9/0x370 [ 10.989497] kunit_try_run_case+0x1a5/0x480 [ 10.989708] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.989939] kthread+0x337/0x6f0 [ 10.990084] ret_from_fork+0x116/0x1d0 [ 10.990292] ret_from_fork_asm+0x1a/0x30 [ 10.990479] [ 10.990565] The buggy address belongs to the object at ffff8881038f8000 [ 10.990565] which belongs to the cache kmalloc-8k of size 8192 [ 10.991000] The buggy address is located 0 bytes to the right of [ 10.991000] allocated 7936-byte region [ffff8881038f8000, ffff8881038f9f00) [ 10.991552] [ 10.991671] The buggy address belongs to the physical page: [ 10.991886] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038f8 [ 10.992555] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.992796] flags: 0x200000000000040(head|node=0|zone=2) [ 10.992976] page_type: f5(slab) [ 10.993095] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.993449] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.993844] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.994137] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.994574] head: 0200000000000003 ffffea00040e3e01 00000000ffffffff 00000000ffffffff [ 10.994810] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.995105] page dumped because: kasan: bad access detected [ 10.995618] [ 10.995718] Memory state around the buggy address: [ 10.995945] ffff8881038f9e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.996289] ffff8881038f9e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.996557] >ffff8881038f9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.996772] ^ [ 10.996942] ffff8881038f9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.997445] ffff8881038fa000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.997687] ==================================================================