Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.114272] ================================================================== [ 16.114336] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 16.114408] Free of addr fff00000c63c0001 by task kunit_try_catch/212 [ 16.114458] [ 16.114499] CPU: 0 UID: 0 PID: 212 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.114598] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.114626] Hardware name: linux,dummy-virt (DT) [ 16.114662] Call trace: [ 16.114687] show_stack+0x20/0x38 (C) [ 16.114740] dump_stack_lvl+0x8c/0xd0 [ 16.114793] print_report+0x118/0x5d0 [ 16.114840] kasan_report_invalid_free+0xc0/0xe8 [ 16.114890] check_slab_allocation+0xfc/0x108 [ 16.114937] __kasan_slab_pre_free+0x2c/0x48 [ 16.114986] kmem_cache_free+0xf0/0x468 [ 16.115032] kmem_cache_invalid_free+0x184/0x3c8 [ 16.115080] kunit_try_run_case+0x170/0x3f0 [ 16.115131] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.115183] kthread+0x328/0x630 [ 16.115226] ret_from_fork+0x10/0x20 [ 16.115275] [ 16.115293] Allocated by task 212: [ 16.115324] kasan_save_stack+0x3c/0x68 [ 16.115363] kasan_save_track+0x20/0x40 [ 16.115398] kasan_save_alloc_info+0x40/0x58 [ 16.115438] __kasan_slab_alloc+0xa8/0xb0 [ 16.115476] kmem_cache_alloc_noprof+0x10c/0x398 [ 16.115515] kmem_cache_invalid_free+0x12c/0x3c8 [ 16.119586] kunit_try_run_case+0x170/0x3f0 [ 16.119633] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.119677] kthread+0x328/0x630 [ 16.119710] ret_from_fork+0x10/0x20 [ 16.119744] [ 16.119766] The buggy address belongs to the object at fff00000c63c0000 [ 16.119766] which belongs to the cache test_cache of size 200 [ 16.119825] The buggy address is located 1 bytes inside of [ 16.119825] 200-byte region [fff00000c63c0000, fff00000c63c00c8) [ 16.119885] [ 16.119906] The buggy address belongs to the physical page: [ 16.119941] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063c0 [ 16.119997] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.120049] page_type: f5(slab) [ 16.120092] raw: 0bfffe0000000000 fff00000c1b473c0 dead000000000122 0000000000000000 [ 16.120143] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 16.120184] page dumped because: kasan: bad access detected [ 16.120214] [ 16.120232] Memory state around the buggy address: [ 16.120265] fff00000c63bff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.120308] fff00000c63bff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.120351] >fff00000c63c0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.120389] ^ [ 16.120416] fff00000c63c0080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 16.120459] fff00000c63c0100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.120497] ==================================================================
[ 12.770910] ================================================================== [ 12.771561] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 12.771921] Free of addr ffff888102f6e001 by task kunit_try_catch/229 [ 12.772263] [ 12.772430] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.772479] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.772490] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.772524] Call Trace: [ 12.772557] <TASK> [ 12.772574] dump_stack_lvl+0x73/0xb0 [ 12.772605] print_report+0xd1/0x610 [ 12.772627] ? __virt_addr_valid+0x1db/0x2d0 [ 12.772651] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.772673] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.772698] kasan_report_invalid_free+0x10a/0x130 [ 12.772722] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.772747] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.772771] check_slab_allocation+0x11f/0x130 [ 12.772794] __kasan_slab_pre_free+0x28/0x40 [ 12.772814] kmem_cache_free+0xed/0x420 [ 12.772834] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.772854] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.772900] kmem_cache_invalid_free+0x1d8/0x460 [ 12.772924] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 12.772947] ? finish_task_switch.isra.0+0x153/0x700 [ 12.772971] ? __switch_to+0x47/0xf50 [ 12.772999] ? __pfx_read_tsc+0x10/0x10 [ 12.773020] ? ktime_get_ts64+0x86/0x230 [ 12.773139] kunit_try_run_case+0x1a5/0x480 [ 12.773164] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.773188] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.773213] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.773237] ? __kthread_parkme+0x82/0x180 [ 12.773257] ? preempt_count_sub+0x50/0x80 [ 12.773279] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.773303] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.773326] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.773349] kthread+0x337/0x6f0 [ 12.773367] ? trace_preempt_on+0x20/0xc0 [ 12.773390] ? __pfx_kthread+0x10/0x10 [ 12.773409] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.773430] ? calculate_sigpending+0x7b/0xa0 [ 12.773455] ? __pfx_kthread+0x10/0x10 [ 12.773475] ret_from_fork+0x116/0x1d0 [ 12.773508] ? __pfx_kthread+0x10/0x10 [ 12.773527] ret_from_fork_asm+0x1a/0x30 [ 12.773558] </TASK> [ 12.773568] [ 12.784726] Allocated by task 229: [ 12.784900] kasan_save_stack+0x45/0x70 [ 12.785199] kasan_save_track+0x18/0x40 [ 12.785386] kasan_save_alloc_info+0x3b/0x50 [ 12.785591] __kasan_slab_alloc+0x91/0xa0 [ 12.785776] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.785983] kmem_cache_invalid_free+0x157/0x460 [ 12.786429] kunit_try_run_case+0x1a5/0x480 [ 12.786642] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.786871] kthread+0x337/0x6f0 [ 12.787021] ret_from_fork+0x116/0x1d0 [ 12.787264] ret_from_fork_asm+0x1a/0x30 [ 12.787446] [ 12.787548] The buggy address belongs to the object at ffff888102f6e000 [ 12.787548] which belongs to the cache test_cache of size 200 [ 12.788032] The buggy address is located 1 bytes inside of [ 12.788032] 200-byte region [ffff888102f6e000, ffff888102f6e0c8) [ 12.788727] [ 12.788818] The buggy address belongs to the physical page: [ 12.789091] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f6e [ 12.789621] flags: 0x200000000000000(node=0|zone=2) [ 12.789843] page_type: f5(slab) [ 12.789994] raw: 0200000000000000 ffff8881018a9780 dead000000000122 0000000000000000 [ 12.790684] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.790998] page dumped because: kasan: bad access detected [ 12.791487] [ 12.791573] Memory state around the buggy address: [ 12.791729] ffff888102f6df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.791944] ffff888102f6df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.792164] >ffff888102f6e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.792379] ^ [ 12.792501] ffff888102f6e080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.792717] ffff888102f6e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.793035] ==================================================================