Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.327083] ================================================================== [ 20.327264] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 20.327423] Free of addr fff00000c6e23000 by task kunit_try_catch/218 [ 20.327511] [ 20.327591] CPU: 0 UID: 0 PID: 218 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 20.327735] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.327796] Hardware name: linux,dummy-virt (DT) [ 20.327886] Call trace: [ 20.327923] show_stack+0x20/0x38 (C) [ 20.327986] dump_stack_lvl+0x8c/0xd0 [ 20.328044] print_report+0x118/0x608 [ 20.328097] kasan_report_invalid_free+0xc0/0xe8 [ 20.328154] check_slab_allocation+0xd4/0x108 [ 20.328207] __kasan_slab_pre_free+0x2c/0x48 [ 20.328262] kmem_cache_free+0xf0/0x468 [ 20.328315] kmem_cache_double_free+0x190/0x3c8 [ 20.328370] kunit_try_run_case+0x170/0x3f0 [ 20.328428] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.328483] kthread+0x328/0x630 [ 20.328534] ret_from_fork+0x10/0x20 [ 20.328591] [ 20.328616] Allocated by task 218: [ 20.328651] kasan_save_stack+0x3c/0x68 [ 20.328700] kasan_save_track+0x20/0x40 [ 20.328742] kasan_save_alloc_info+0x40/0x58 [ 20.328825] __kasan_slab_alloc+0xa8/0xb0 [ 20.328885] kmem_cache_alloc_noprof+0x10c/0x398 [ 20.328928] kmem_cache_double_free+0x12c/0x3c8 [ 20.328971] kunit_try_run_case+0x170/0x3f0 [ 20.329010] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.329354] kthread+0x328/0x630 [ 20.329669] ret_from_fork+0x10/0x20 [ 20.329752] [ 20.329801] Freed by task 218: [ 20.329857] kasan_save_stack+0x3c/0x68 [ 20.329911] kasan_save_track+0x20/0x40 [ 20.329971] kasan_save_free_info+0x4c/0x78 [ 20.330043] __kasan_slab_free+0x6c/0x98 [ 20.330085] kmem_cache_free+0x260/0x468 [ 20.330162] kmem_cache_double_free+0x140/0x3c8 [ 20.330207] kunit_try_run_case+0x170/0x3f0 [ 20.330252] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.330301] kthread+0x328/0x630 [ 20.330339] ret_from_fork+0x10/0x20 [ 20.330380] [ 20.330403] The buggy address belongs to the object at fff00000c6e23000 [ 20.330403] which belongs to the cache test_cache of size 200 [ 20.330490] The buggy address is located 0 bytes inside of [ 20.330490] 200-byte region [fff00000c6e23000, fff00000c6e230c8) [ 20.330559] [ 20.330585] The buggy address belongs to the physical page: [ 20.330632] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e23 [ 20.330722] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.330809] page_type: f5(slab) [ 20.330922] raw: 0bfffe0000000000 fff00000c5c86dc0 dead000000000122 0000000000000000 [ 20.331104] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 20.331365] page dumped because: kasan: bad access detected [ 20.331408] [ 20.331432] Memory state around the buggy address: [ 20.331654] fff00000c6e22f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.331914] fff00000c6e22f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.332070] >fff00000c6e23000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.332268] ^ [ 20.332395] fff00000c6e23080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 20.332615] fff00000c6e23100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.332671] ==================================================================
[ 12.176371] ================================================================== [ 12.177649] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 12.177908] Free of addr ffff8881028d2000 by task kunit_try_catch/234 [ 12.178141] [ 12.178235] CPU: 1 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 12.178286] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.178297] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.178318] Call Trace: [ 12.178368] <TASK> [ 12.178389] dump_stack_lvl+0x73/0xb0 [ 12.178422] print_report+0xd1/0x650 [ 12.178445] ? __virt_addr_valid+0x1db/0x2d0 [ 12.178470] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.178492] ? kmem_cache_double_free+0x1e5/0x480 [ 12.178532] kasan_report_invalid_free+0x10a/0x130 [ 12.178555] ? kmem_cache_double_free+0x1e5/0x480 [ 12.178600] ? kmem_cache_double_free+0x1e5/0x480 [ 12.178623] check_slab_allocation+0x101/0x130 [ 12.178644] __kasan_slab_pre_free+0x28/0x40 [ 12.178664] kmem_cache_free+0xed/0x420 [ 12.178684] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.178703] ? kmem_cache_double_free+0x1e5/0x480 [ 12.178728] kmem_cache_double_free+0x1e5/0x480 [ 12.178751] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 12.178773] ? finish_task_switch.isra.0+0x153/0x700 [ 12.178796] ? __switch_to+0x47/0xf50 [ 12.178825] ? __pfx_read_tsc+0x10/0x10 [ 12.178846] ? ktime_get_ts64+0x86/0x230 [ 12.178871] kunit_try_run_case+0x1a5/0x480 [ 12.178897] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.178917] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.178951] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.178972] ? __kthread_parkme+0x82/0x180 [ 12.178993] ? preempt_count_sub+0x50/0x80 [ 12.179015] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.179037] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.179058] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.179080] kthread+0x337/0x6f0 [ 12.179099] ? trace_preempt_on+0x20/0xc0 [ 12.179144] ? __pfx_kthread+0x10/0x10 [ 12.179164] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.179183] ? calculate_sigpending+0x7b/0xa0 [ 12.179207] ? __pfx_kthread+0x10/0x10 [ 12.179227] ret_from_fork+0x116/0x1d0 [ 12.179245] ? __pfx_kthread+0x10/0x10 [ 12.179264] ret_from_fork_asm+0x1a/0x30 [ 12.179294] </TASK> [ 12.179305] [ 12.190670] Allocated by task 234: [ 12.190825] kasan_save_stack+0x45/0x70 [ 12.190979] kasan_save_track+0x18/0x40 [ 12.191195] kasan_save_alloc_info+0x3b/0x50 [ 12.191413] __kasan_slab_alloc+0x91/0xa0 [ 12.191613] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.191766] kmem_cache_double_free+0x14f/0x480 [ 12.191913] kunit_try_run_case+0x1a5/0x480 [ 12.192063] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.192248] kthread+0x337/0x6f0 [ 12.192403] ret_from_fork+0x116/0x1d0 [ 12.192603] ret_from_fork_asm+0x1a/0x30 [ 12.193144] [ 12.193252] Freed by task 234: [ 12.193384] kasan_save_stack+0x45/0x70 [ 12.193575] kasan_save_track+0x18/0x40 [ 12.193745] kasan_save_free_info+0x3f/0x60 [ 12.193911] __kasan_slab_free+0x56/0x70 [ 12.194091] kmem_cache_free+0x249/0x420 [ 12.194282] kmem_cache_double_free+0x16a/0x480 [ 12.194950] kunit_try_run_case+0x1a5/0x480 [ 12.195107] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.195350] kthread+0x337/0x6f0 [ 12.195532] ret_from_fork+0x116/0x1d0 [ 12.195736] ret_from_fork_asm+0x1a/0x30 [ 12.196231] [ 12.196334] The buggy address belongs to the object at ffff8881028d2000 [ 12.196334] which belongs to the cache test_cache of size 200 [ 12.197150] The buggy address is located 0 bytes inside of [ 12.197150] 200-byte region [ffff8881028d2000, ffff8881028d20c8) [ 12.197745] [ 12.198012] The buggy address belongs to the physical page: [ 12.198347] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028d2 [ 12.198849] flags: 0x200000000000000(node=0|zone=2) [ 12.199327] page_type: f5(slab) [ 12.199692] raw: 0200000000000000 ffff8881018943c0 dead000000000122 0000000000000000 [ 12.200053] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.200519] page dumped because: kasan: bad access detected [ 12.200948] [ 12.201072] Memory state around the buggy address: [ 12.201296] ffff8881028d1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.201819] ffff8881028d1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.202323] >ffff8881028d2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.202974] ^ [ 12.203181] ffff8881028d2080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 12.203474] ffff8881028d2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.203779] ==================================================================