Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.111968] ================================================================== [ 15.112297] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 15.112398] Write of size 1 at addr fff00000c7741f00 by task kunit_try_catch/144 [ 15.112485] [ 15.112559] CPU: 1 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.112660] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.112687] Hardware name: linux,dummy-virt (DT) [ 15.112736] Call trace: [ 15.112759] show_stack+0x20/0x38 (C) [ 15.112844] dump_stack_lvl+0x8c/0xd0 [ 15.112892] print_report+0x118/0x5d0 [ 15.112944] kasan_report+0xdc/0x128 [ 15.113143] __asan_report_store1_noabort+0x20/0x30 [ 15.113252] kmalloc_big_oob_right+0x2a4/0x2f0 [ 15.113505] kunit_try_run_case+0x170/0x3f0 [ 15.113582] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.113636] kthread+0x328/0x630 [ 15.113694] ret_from_fork+0x10/0x20 [ 15.113853] [ 15.113892] Allocated by task 144: [ 15.113931] kasan_save_stack+0x3c/0x68 [ 15.113993] kasan_save_track+0x20/0x40 [ 15.114033] kasan_save_alloc_info+0x40/0x58 [ 15.114073] __kasan_kmalloc+0xd4/0xd8 [ 15.114109] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.114147] kmalloc_big_oob_right+0xb8/0x2f0 [ 15.114184] kunit_try_run_case+0x170/0x3f0 [ 15.114221] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.114402] kthread+0x328/0x630 [ 15.114539] ret_from_fork+0x10/0x20 [ 15.114634] [ 15.114747] The buggy address belongs to the object at fff00000c7740000 [ 15.114747] which belongs to the cache kmalloc-8k of size 8192 [ 15.114827] The buggy address is located 0 bytes to the right of [ 15.114827] allocated 7936-byte region [fff00000c7740000, fff00000c7741f00) [ 15.115109] [ 15.115169] The buggy address belongs to the physical page: [ 15.115218] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107740 [ 15.115305] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.115426] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.115499] page_type: f5(slab) [ 15.115538] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 15.115866] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 15.115931] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 15.116001] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 15.116280] head: 0bfffe0000000003 ffffc1ffc31dd001 00000000ffffffff 00000000ffffffff [ 15.116354] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 15.116489] page dumped because: kasan: bad access detected [ 15.116577] [ 15.116652] Memory state around the buggy address: [ 15.116767] fff00000c7741e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.116856] fff00000c7741e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.116957] >fff00000c7741f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.117024] ^ [ 15.117428] fff00000c7741f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.117496] fff00000c7742000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.117535] ==================================================================
[ 11.540135] ================================================================== [ 11.540660] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 11.540997] Write of size 1 at addr ffff888102925f00 by task kunit_try_catch/163 [ 11.541399] [ 11.541532] CPU: 0 UID: 0 PID: 163 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.541574] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.541585] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.541604] Call Trace: [ 11.541616] <TASK> [ 11.541629] dump_stack_lvl+0x73/0xb0 [ 11.541656] print_report+0xd1/0x610 [ 11.541676] ? __virt_addr_valid+0x1db/0x2d0 [ 11.541719] ? kmalloc_big_oob_right+0x316/0x370 [ 11.541754] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.541776] ? kmalloc_big_oob_right+0x316/0x370 [ 11.541812] kasan_report+0x141/0x180 [ 11.541833] ? kmalloc_big_oob_right+0x316/0x370 [ 11.541859] __asan_report_store1_noabort+0x1b/0x30 [ 11.541883] kmalloc_big_oob_right+0x316/0x370 [ 11.541905] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 11.541928] ? __schedule+0x10cc/0x2b60 [ 11.541949] ? __pfx_read_tsc+0x10/0x10 [ 11.541968] ? ktime_get_ts64+0x86/0x230 [ 11.541991] kunit_try_run_case+0x1a5/0x480 [ 11.542026] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.542048] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.542070] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.542093] ? __kthread_parkme+0x82/0x180 [ 11.542112] ? preempt_count_sub+0x50/0x80 [ 11.542134] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.542157] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.542196] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.542220] kthread+0x337/0x6f0 [ 11.542251] ? trace_preempt_on+0x20/0xc0 [ 11.542284] ? __pfx_kthread+0x10/0x10 [ 11.542303] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.542323] ? calculate_sigpending+0x7b/0xa0 [ 11.542346] ? __pfx_kthread+0x10/0x10 [ 11.542366] ret_from_fork+0x116/0x1d0 [ 11.542384] ? __pfx_kthread+0x10/0x10 [ 11.542403] ret_from_fork_asm+0x1a/0x30 [ 11.542432] </TASK> [ 11.542441] [ 11.550844] Allocated by task 163: [ 11.551022] kasan_save_stack+0x45/0x70 [ 11.551334] kasan_save_track+0x18/0x40 [ 11.551656] kasan_save_alloc_info+0x3b/0x50 [ 11.551873] __kasan_kmalloc+0xb7/0xc0 [ 11.552053] __kmalloc_cache_noprof+0x189/0x420 [ 11.552285] kmalloc_big_oob_right+0xa9/0x370 [ 11.552565] kunit_try_run_case+0x1a5/0x480 [ 11.552764] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.553050] kthread+0x337/0x6f0 [ 11.553223] ret_from_fork+0x116/0x1d0 [ 11.553366] ret_from_fork_asm+0x1a/0x30 [ 11.553506] [ 11.553576] The buggy address belongs to the object at ffff888102924000 [ 11.553576] which belongs to the cache kmalloc-8k of size 8192 [ 11.554363] The buggy address is located 0 bytes to the right of [ 11.554363] allocated 7936-byte region [ffff888102924000, ffff888102925f00) [ 11.554773] [ 11.554845] The buggy address belongs to the physical page: [ 11.555336] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102920 [ 11.555955] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.556759] flags: 0x200000000000040(head|node=0|zone=2) [ 11.556946] page_type: f5(slab) [ 11.558197] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.559055] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.559891] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.560141] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.560882] head: 0200000000000003 ffffea00040a4801 00000000ffffffff 00000000ffffffff [ 11.561793] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 11.562747] page dumped because: kasan: bad access detected [ 11.563398] [ 11.563766] Memory state around the buggy address: [ 11.563937] ffff888102925e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.564833] ffff888102925e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.565664] >ffff888102925f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.566098] ^ [ 11.566520] ffff888102925f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.567071] ffff888102926000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.567700] ==================================================================