Date
July 22, 2025, 5:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.942643] ================================================================== [ 29.942750] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 29.943130] Read of size 1 at addr fff00000c7b7a7df by task kunit_try_catch/169 [ 29.943184] [ 29.943221] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 29.943422] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.943456] Hardware name: linux,dummy-virt (DT) [ 29.943487] Call trace: [ 29.943509] show_stack+0x20/0x38 (C) [ 29.944029] dump_stack_lvl+0x8c/0xd0 [ 29.944162] print_report+0x118/0x5e8 [ 29.944226] kasan_report+0xdc/0x128 [ 29.944286] __asan_report_load1_noabort+0x20/0x30 [ 29.944508] kmalloc_oob_left+0x2ec/0x320 [ 29.944810] kunit_try_run_case+0x170/0x3f0 [ 29.945002] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.945101] kthread+0x328/0x630 [ 29.945147] ret_from_fork+0x10/0x20 [ 29.945195] [ 29.945366] Allocated by task 104: [ 29.945404] kasan_save_stack+0x3c/0x68 [ 29.945447] kasan_save_track+0x20/0x40 [ 29.945482] kasan_save_alloc_info+0x40/0x58 [ 29.945526] __kasan_kmalloc+0xd4/0xd8 [ 29.945560] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 29.945900] kvasprintf+0xe0/0x180 [ 29.946008] kasprintf+0xd0/0x110 [ 29.946075] miscdev_test_can_open+0xac/0x2c8 [ 29.946412] miscdev_test_collision_reverse+0x3b8/0x650 [ 29.946660] kunit_try_run_case+0x170/0x3f0 [ 29.947042] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.947098] kthread+0x328/0x630 [ 29.947308] ret_from_fork+0x10/0x20 [ 29.947365] [ 29.947410] Freed by task 3350701984: [ 29.947594] ------------[ cut here ]------------ [ 29.947647] pool index -1 out of bounds (219) for stack id fff00000 [ 29.951614] WARNING: lib/stackdepot.c:500 at depot_fetch_stack+0x68/0x88, CPU#1: kunit_try_catch/169 [ 30.008495] Modules linked in: [ 30.010083] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 30.011122] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.011446] Hardware name: linux,dummy-virt (DT) [ 30.012356] pstate: 614000c9 (nZCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 30.013213] pc : depot_fetch_stack+0x68/0x88 [ 30.013575] lr : depot_fetch_stack+0x68/0x88 [ 30.013846] sp : ffff800080b37a50 [ 30.014038] x29: ffff800080b37a50 x28: ffff800080087b08 x27: 1ffff00010010f61 [ 30.015029] x26: 1ffff00010010f60 x25: ffff800080087b00 x24: ffff97f86b378044 [ 30.015620] x23: ffffc1ffc31ede80 x22: ffff97f86fea4788 x21: ffff97f86fea7ae8 [ 30.016213] x20: fff00000c7b7a7df x19: ffff800080b37b60 x18: 000000004344aacd [ 30.016830] x17: 0000000000000001 x16: 00000000f1f1f1f1 x15: 0000000000000007 [ 30.017763] x14: 0000000000000000 x13: 0000000000000007 x12: ffff700010166ea7 [ 30.018677] x11: 1ffff00010166ea6 x10: ffff700010166ea6 x9 : ffff97f86acf118c [ 30.019637] x8 : ffff800080b37537 x7 : 0000000000000001 x6 : ffff700010166ea6 [ 30.020546] x5 : ffff800080b37530 x4 : 1ffe00001934d511 x3 : dfff800000000000 [ 30.020933] x2 : 0000000000000000 x1 : 0000000000000000 x0 : fff00000c9a6a880 [ 30.021832] Call trace: [ 30.022000] depot_fetch_stack+0x68/0x88 (P) [ 30.022221] stack_depot_print+0x24/0x60 [ 30.022421] print_report+0x5e4/0x5e8 [ 30.022613] kasan_report+0xdc/0x128 [ 30.022797] __asan_report_load1_noabort+0x20/0x30 [ 30.023339] kmalloc_oob_left+0x2ec/0x320 [ 30.023599] kunit_try_run_case+0x170/0x3f0 [ 30.023865] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.024148] kthread+0x328/0x630 [ 30.024356] ret_from_fork+0x10/0x20 [ 30.024653] ---[ end trace 0000000000000000 ]--- [ 30.025172] ------------[ cut here ]------------ [ 30.025222] corrupt handle or use after stack_depot_put() [ 30.025314] WARNING: lib/stackdepot.c:772 at stack_depot_print+0x54/0x60, CPU#1: kunit_try_catch/169 [ 30.026565] Modules linked in: [ 30.026838] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 30.027498] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 30.027798] Hardware name: linux,dummy-virt (DT) [ 30.028092] pstate: 614000c9 (nZCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 30.028457] pc : stack_depot_print+0x54/0x60 [ 30.028765] lr : stack_depot_print+0x54/0x60 [ 30.029351] sp : ffff800080b37a60 [ 30.029631] x29: ffff800080b37a60 x28: ffff800080087b08 x27: 1ffff00010010f61 [ 30.030129] x26: 1ffff00010010f60 x25: ffff800080087b00 x24: ffff97f86b378044 [ 30.030596] x23: ffffc1ffc31ede80 x22: ffff97f86fea4788 x21: ffff97f86fea7ae8 [ 30.031061] x20: fff00000c7b7a7df x19: ffff800080b37b60 x18: 000000004344aacd [ 30.031521] x17: 0000000000000001 x16: 00000000f1f1f1f1 x15: 00000000f3f3f3f3 [ 30.031981] x14: ffff700010166f2c x13: 1ffe00001934d511 x12: ffff72ff0e3954f1 [ 30.032443] x11: 1ffff2ff0e3954f0 x10: ffff72ff0e3954f0 x9 : ffff97f86acf118c [ 30.033059] x8 : ffff97f871caa783 x7 : 0000000000000001 x6 : ffff72ff0e3954f0 [ 30.033541] x5 : ffff97f871caa780 x4 : 1ffe00001934d511 x3 : dfff800000000000 [ 30.033988] x2 : 0000000000000000 x1 : 0000000000000000 x0 : fff00000c9a6a880 [ 30.034432] Call trace: [ 30.034597] stack_depot_print+0x54/0x60 (P) [ 30.034893] print_report+0x5e4/0x5e8 [ 30.035172] kasan_report+0xdc/0x128 [ 30.035397] __asan_report_load1_noabort+0x20/0x30 [ 30.035691] kmalloc_oob_left+0x2ec/0x320 [ 30.035955] kunit_try_run_case+0x170/0x3f0 [ 30.036235] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.036562] kthread+0x328/0x630 [ 30.036822] ret_from_fork+0x10/0x20 [ 30.037057] ---[ end trace 0000000000000000 ]--- [ 30.037405] [ 30.037434] The buggy address belongs to the object at fff00000c7b7a7c0 [ 30.037434] which belongs to the cache kmalloc-16 of size 16 [ 30.037493] The buggy address is located 15 bytes to the right of [ 30.037493] allocated 16-byte region [fff00000c7b7a7c0, fff00000c7b7a7d0) [ 30.037669] [ 30.037691] The buggy address belongs to the physical page: [ 30.037744] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107b7a [ 30.037799] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.037868] page_type: f5(slab) [ 30.037910] raw: 0bfffe0000000000 fff00000c0001640 dead000000000100 dead000000000122 [ 30.037959] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 30.037998] page dumped because: kasan: bad access detected [ 30.038027] [ 30.038045] Memory state around the buggy address: [ 30.038076] fff00000c7b7a680: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.038118] fff00000c7b7a700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.038164] >fff00000c7b7a780: fa fb fc fc fa fb fc fc fa fb fc fc 00 07 fc fc [ 30.038199] ^ [ 30.038236] fff00000c7b7a800: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.038276] fff00000c7b7a880: fa fb fc fc 00 00 fc fc fa fb fc fc fa fb fc fc [ 30.038313] ==================================================================
[ 24.466104] ================================================================== [ 24.466868] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 24.467195] Read of size 1 at addr ffff88810585ea5f by task kunit_try_catch/186 [ 24.467578] [ 24.467709] CPU: 1 UID: 0 PID: 186 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) [ 24.467758] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.467770] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.467791] Call Trace: [ 24.467804] <TASK> [ 24.467818] dump_stack_lvl+0x73/0xb0 [ 24.467858] print_report+0xd1/0x640 [ 24.467881] ? __virt_addr_valid+0x1db/0x2d0 [ 24.467904] ? kmalloc_oob_left+0x361/0x3c0 [ 24.467926] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.467953] ? kmalloc_oob_left+0x361/0x3c0 [ 24.467975] kasan_report+0x141/0x180 [ 24.467999] ? kmalloc_oob_left+0x361/0x3c0 [ 24.468027] __asan_report_load1_noabort+0x18/0x20 [ 24.468054] kmalloc_oob_left+0x361/0x3c0 [ 24.468077] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 24.468100] ? __schedule+0x10da/0x2b60 [ 24.468126] ? __pfx_read_tsc+0x10/0x10 [ 24.468147] ? ktime_get_ts64+0x86/0x230 [ 24.468173] kunit_try_run_case+0x1a5/0x480 [ 24.468199] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.468222] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.468247] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.468273] ? __kthread_parkme+0x82/0x180 [ 24.468294] ? preempt_count_sub+0x50/0x80 [ 24.468318] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.468352] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.468378] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.468403] kthread+0x337/0x6f0 [ 24.468423] ? trace_preempt_on+0x20/0xc0 [ 24.468447] ? __pfx_kthread+0x10/0x10 [ 24.468469] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.468493] ? calculate_sigpending+0x7b/0xa0 [ 24.468517] ? __pfx_kthread+0x10/0x10 [ 24.468540] ret_from_fork+0x116/0x1d0 [ 24.468559] ? __pfx_kthread+0x10/0x10 [ 24.468581] ret_from_fork_asm+0x1a/0x30 [ 24.468616] </TASK> [ 24.468626] [ 24.477321] Allocated by task 21: [ 24.477637] kasan_save_stack+0x45/0x70 [ 24.477976] kasan_save_track+0x18/0x40 [ 24.478132] kasan_save_alloc_info+0x3b/0x50 [ 24.478462] __kasan_kmalloc+0xb7/0xc0 [ 24.478647] __kmalloc_cache_node_noprof+0x188/0x420 [ 24.478880] build_sched_domains+0x38c/0x5d80 [ 24.479073] partition_sched_domains+0x471/0x9c0 [ 24.479534] rebuild_sched_domains_locked+0x97d/0xd50 [ 24.479869] cpuset_update_active_cpus+0x80f/0x1a90 [ 24.480101] sched_cpu_activate+0x2bf/0x330 [ 24.480464] cpuhp_invoke_callback+0x2a1/0xf00 [ 24.480733] cpuhp_thread_fun+0x2ce/0x5c0 [ 24.480991] smpboot_thread_fn+0x2bc/0x730 [ 24.481287] kthread+0x337/0x6f0 [ 24.481424] ret_from_fork+0x116/0x1d0 [ 24.481616] ret_from_fork_asm+0x1a/0x30 [ 24.481974] [ 24.482075] Freed by task 21: [ 24.482242] kasan_save_stack+0x45/0x70 [ 24.482734] kasan_save_track+0x18/0x40 [ 24.482930] kasan_save_free_info+0x3f/0x60 [ 24.483119] __kasan_slab_free+0x56/0x70 [ 24.483279] kfree+0x222/0x3f0 [ 24.483634] build_sched_domains+0x2072/0x5d80 [ 24.483844] partition_sched_domains+0x471/0x9c0 [ 24.484133] rebuild_sched_domains_locked+0x97d/0xd50 [ 24.484471] cpuset_update_active_cpus+0x80f/0x1a90 [ 24.484696] sched_cpu_activate+0x2bf/0x330 [ 24.484898] cpuhp_invoke_callback+0x2a1/0xf00 [ 24.485087] cpuhp_thread_fun+0x2ce/0x5c0 [ 24.485268] smpboot_thread_fn+0x2bc/0x730 [ 24.485674] kthread+0x337/0x6f0 [ 24.485843] ret_from_fork+0x116/0x1d0 [ 24.486114] ret_from_fork_asm+0x1a/0x30 [ 24.486296] [ 24.486533] The buggy address belongs to the object at ffff88810585ea40 [ 24.486533] which belongs to the cache kmalloc-16 of size 16 [ 24.487111] The buggy address is located 15 bytes to the right of [ 24.487111] allocated 16-byte region [ffff88810585ea40, ffff88810585ea50) [ 24.487731] [ 24.487842] The buggy address belongs to the physical page: [ 24.488075] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10585e [ 24.488598] flags: 0x200000000000000(node=0|zone=2) [ 24.488901] page_type: f5(slab) [ 24.489043] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 24.489567] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.489988] page dumped because: kasan: bad access detected [ 24.490176] [ 24.490287] Memory state around the buggy address: [ 24.490577] ffff88810585e900: fa fb fc fc fa fb fc fc 00 06 fc fc 00 06 fc fc [ 24.490883] ffff88810585e980: 00 06 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc [ 24.491191] >ffff88810585ea00: fa fb fc fc fa fb fc fc fa fb fc fc 00 07 fc fc [ 24.491710] ^ [ 24.492050] ffff88810585ea80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.492337] ffff88810585eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.492758] ==================================================================