Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.567421] ================================================================== [ 17.568049] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 17.568272] Read of size 1 at addr fff00000c5e3f000 by task kunit_try_catch/142 [ 17.568373] [ 17.568472] CPU: 1 UID: 0 PID: 142 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 17.568576] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.568673] Hardware name: linux,dummy-virt (DT) [ 17.568740] Call trace: [ 17.568857] show_stack+0x20/0x38 (C) [ 17.568915] dump_stack_lvl+0x8c/0xd0 [ 17.568981] print_report+0x118/0x608 [ 17.569272] kasan_report+0xdc/0x128 [ 17.569513] __asan_report_load1_noabort+0x20/0x30 [ 17.569605] kmalloc_node_oob_right+0x2f4/0x330 [ 17.569996] kunit_try_run_case+0x170/0x3f0 [ 17.570091] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.570353] kthread+0x328/0x630 [ 17.570491] ret_from_fork+0x10/0x20 [ 17.570881] [ 17.570908] Allocated by task 142: [ 17.570938] kasan_save_stack+0x3c/0x68 [ 17.571015] kasan_save_track+0x20/0x40 [ 17.571060] kasan_save_alloc_info+0x40/0x58 [ 17.571112] __kasan_kmalloc+0xd4/0xd8 [ 17.571147] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 17.571189] kmalloc_node_oob_right+0xbc/0x330 [ 17.571226] kunit_try_run_case+0x170/0x3f0 [ 17.571273] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.571316] kthread+0x328/0x630 [ 17.571363] ret_from_fork+0x10/0x20 [ 17.571407] [ 17.571426] The buggy address belongs to the object at fff00000c5e3e000 [ 17.571426] which belongs to the cache kmalloc-4k of size 4096 [ 17.571481] The buggy address is located 0 bytes to the right of [ 17.571481] allocated 4096-byte region [fff00000c5e3e000, fff00000c5e3f000) [ 17.571542] [ 17.571570] The buggy address belongs to the physical page: [ 17.571670] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105e38 [ 17.571890] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.571939] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.572046] page_type: f5(slab) [ 17.572085] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 17.572143] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 17.572199] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 17.572833] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 17.573277] head: 0bfffe0000000003 ffffc1ffc3178e01 00000000ffffffff 00000000ffffffff [ 17.573375] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 17.573925] page dumped because: kasan: bad access detected [ 17.573962] [ 17.573980] Memory state around the buggy address: [ 17.574044] fff00000c5e3ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.574089] fff00000c5e3ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.574451] >fff00000c5e3f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.574530] ^ [ 17.574793] fff00000c5e3f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.575129] fff00000c5e3f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.575175] ==================================================================
[ 10.559916] ================================================================== [ 10.560749] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 10.561270] Read of size 1 at addr ffff8881028f5000 by task kunit_try_catch/160 [ 10.561506] [ 10.561676] CPU: 0 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 10.561722] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.561734] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.561783] Call Trace: [ 10.561795] <TASK> [ 10.561809] dump_stack_lvl+0x73/0xb0 [ 10.561835] print_report+0xd1/0x650 [ 10.561859] ? __virt_addr_valid+0x1db/0x2d0 [ 10.561895] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.561916] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.561939] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.561960] kasan_report+0x141/0x180 [ 10.561983] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.562008] __asan_report_load1_noabort+0x18/0x20 [ 10.562030] kmalloc_node_oob_right+0x369/0x3c0 [ 10.562053] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 10.562127] ? __schedule+0x10cc/0x2b60 [ 10.562151] ? __pfx_read_tsc+0x10/0x10 [ 10.562172] ? ktime_get_ts64+0x86/0x230 [ 10.562199] kunit_try_run_case+0x1a5/0x480 [ 10.562221] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.562240] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.562264] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.562288] ? __kthread_parkme+0x82/0x180 [ 10.562309] ? preempt_count_sub+0x50/0x80 [ 10.562334] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.562354] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.562378] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.562401] kthread+0x337/0x6f0 [ 10.562418] ? trace_preempt_on+0x20/0xc0 [ 10.562442] ? __pfx_kthread+0x10/0x10 [ 10.562460] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.562482] ? calculate_sigpending+0x7b/0xa0 [ 10.562503] ? __pfx_kthread+0x10/0x10 [ 10.562522] ret_from_fork+0x41/0x80 [ 10.562542] ? __pfx_kthread+0x10/0x10 [ 10.562560] ret_from_fork_asm+0x1a/0x30 [ 10.562589] </TASK> [ 10.562600] [ 10.571909] Allocated by task 160: [ 10.572147] kasan_save_stack+0x45/0x70 [ 10.572388] kasan_save_track+0x18/0x40 [ 10.572593] kasan_save_alloc_info+0x3b/0x50 [ 10.572827] __kasan_kmalloc+0xb7/0xc0 [ 10.573133] __kmalloc_cache_node_noprof+0x188/0x420 [ 10.573313] kmalloc_node_oob_right+0xab/0x3c0 [ 10.573463] kunit_try_run_case+0x1a5/0x480 [ 10.573639] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.574235] kthread+0x337/0x6f0 [ 10.574434] ret_from_fork+0x41/0x80 [ 10.574635] ret_from_fork_asm+0x1a/0x30 [ 10.574924] [ 10.575077] The buggy address belongs to the object at ffff8881028f4000 [ 10.575077] which belongs to the cache kmalloc-4k of size 4096 [ 10.575564] The buggy address is located 0 bytes to the right of [ 10.575564] allocated 4096-byte region [ffff8881028f4000, ffff8881028f5000) [ 10.576180] [ 10.576284] The buggy address belongs to the physical page: [ 10.576597] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028f0 [ 10.577318] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.577741] flags: 0x200000000000040(head|node=0|zone=2) [ 10.578168] page_type: f5(slab) [ 10.578354] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.578760] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.579373] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.579731] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.580138] head: 0200000000000003 ffffea00040a3c01 00000000ffffffff 00000000ffffffff [ 10.580483] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.580956] page dumped because: kasan: bad access detected [ 10.581199] [ 10.581296] Memory state around the buggy address: [ 10.581608] ffff8881028f4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.581961] ffff8881028f4f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.582242] >ffff8881028f5000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.582587] ^ [ 10.582744] ffff8881028f5080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.583051] ffff8881028f5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.583436] ==================================================================