Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.783721] ================================================================== [ 18.784023] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 18.784262] Read of size 1 at addr fff00000c4561a5f by task kunit_try_catch/139 [ 18.784457] [ 18.784629] CPU: 0 UID: 0 PID: 139 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.785194] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.785309] Hardware name: linux,dummy-virt (DT) [ 18.785394] Call trace: [ 18.785451] show_stack+0x20/0x38 (C) [ 18.785585] dump_stack_lvl+0x8c/0xd0 [ 18.785700] print_report+0x118/0x608 [ 18.785815] kasan_report+0xdc/0x128 [ 18.785945] __asan_report_load1_noabort+0x20/0x30 [ 18.786293] kmalloc_oob_left+0x2ec/0x320 [ 18.786546] kunit_try_run_case+0x170/0x3f0 [ 18.786950] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.787369] kthread+0x328/0x630 [ 18.787872] ret_from_fork+0x10/0x20 [ 18.788183] [ 18.788241] Allocated by task 26: [ 18.788315] kasan_save_stack+0x3c/0x68 [ 18.788792] kasan_save_track+0x20/0x40 [ 18.789153] kasan_save_alloc_info+0x40/0x58 [ 18.789378] __kasan_kmalloc+0xd4/0xd8 [ 18.789466] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 18.790695] kstrdup+0x54/0xc8 [ 18.790781] devtmpfs_work_loop+0x6f8/0xa58 [ 18.791448] devtmpfsd+0x50/0x58 [ 18.791574] kthread+0x328/0x630 [ 18.791672] ret_from_fork+0x10/0x20 [ 18.791807] [ 18.791918] Freed by task 26: [ 18.792010] kasan_save_stack+0x3c/0x68 [ 18.792932] kasan_save_track+0x20/0x40 [ 18.793073] kasan_save_free_info+0x4c/0x78 [ 18.793269] __kasan_slab_free+0x6c/0x98 [ 18.793364] kfree+0x214/0x3c8 [ 18.793570] devtmpfs_work_loop+0x804/0xa58 [ 18.793649] devtmpfsd+0x50/0x58 [ 18.793708] kthread+0x328/0x630 [ 18.794198] ret_from_fork+0x10/0x20 [ 18.794364] [ 18.794481] The buggy address belongs to the object at fff00000c4561a40 [ 18.794481] which belongs to the cache kmalloc-16 of size 16 [ 18.794634] The buggy address is located 15 bytes to the right of [ 18.794634] allocated 16-byte region [fff00000c4561a40, fff00000c4561a50) [ 18.794991] [ 18.795045] The buggy address belongs to the physical page: [ 18.795129] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104561 [ 18.795448] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.795673] page_type: f5(slab) [ 18.796026] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 18.796236] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 18.796447] page dumped because: kasan: bad access detected [ 18.796535] [ 18.796579] Memory state around the buggy address: [ 18.796668] fff00000c4561900: 00 00 fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 18.797055] fff00000c4561980: fa fb fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 18.797358] >fff00000c4561a00: fa fb fc fc 00 05 fc fc fa fb fc fc 00 07 fc fc [ 18.797480] ^ [ 18.797566] fff00000c4561a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.797669] fff00000c4561b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.797749] ==================================================================
[ 12.003866] ================================================================== [ 12.004408] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 12.004728] Read of size 1 at addr ffff8881028942df by task kunit_try_catch/156 [ 12.005283] [ 12.005395] CPU: 0 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.005437] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.005448] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.005468] Call Trace: [ 12.005480] <TASK> [ 12.005496] dump_stack_lvl+0x73/0xb0 [ 12.005529] print_report+0xd1/0x650 [ 12.005551] ? __virt_addr_valid+0x1db/0x2d0 [ 12.005576] ? kmalloc_oob_left+0x361/0x3c0 [ 12.005597] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.005620] ? kmalloc_oob_left+0x361/0x3c0 [ 12.005887] kasan_report+0x141/0x180 [ 12.005914] ? kmalloc_oob_left+0x361/0x3c0 [ 12.005941] __asan_report_load1_noabort+0x18/0x20 [ 12.005966] kmalloc_oob_left+0x361/0x3c0 [ 12.005988] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 12.006010] ? __schedule+0x10cc/0x2b60 [ 12.006033] ? __pfx_read_tsc+0x10/0x10 [ 12.006055] ? ktime_get_ts64+0x86/0x230 [ 12.006080] kunit_try_run_case+0x1a5/0x480 [ 12.006105] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.006128] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.006154] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.006178] ? __kthread_parkme+0x82/0x180 [ 12.006198] ? preempt_count_sub+0x50/0x80 [ 12.006222] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.006246] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.006270] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.006295] kthread+0x337/0x6f0 [ 12.006315] ? trace_preempt_on+0x20/0xc0 [ 12.006339] ? __pfx_kthread+0x10/0x10 [ 12.006364] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.006386] ? calculate_sigpending+0x7b/0xa0 [ 12.006411] ? __pfx_kthread+0x10/0x10 [ 12.006432] ret_from_fork+0x116/0x1d0 [ 12.006450] ? __pfx_kthread+0x10/0x10 [ 12.006470] ret_from_fork_asm+0x1a/0x30 [ 12.006502] </TASK> [ 12.006513] [ 12.013976] Allocated by task 1: [ 12.014154] kasan_save_stack+0x45/0x70 [ 12.014331] kasan_save_track+0x18/0x40 [ 12.014524] kasan_save_alloc_info+0x3b/0x50 [ 12.014804] __kasan_kmalloc+0xb7/0xc0 [ 12.014993] __kmalloc_noprof+0x1c9/0x500 [ 12.015133] x509_fabricate_name.isra.0+0x3c2/0x830 [ 12.015358] x509_note_subject+0x9b/0xf0 [ 12.015557] asn1_ber_decoder+0xe13/0x1c60 [ 12.015870] x509_cert_parse+0x1be/0x830 [ 12.016044] x509_key_preparse+0x68/0x8a0 [ 12.016242] asymmetric_key_preparse+0xb1/0x160 [ 12.016439] __key_create_or_update+0x43d/0xcc0 [ 12.016845] key_create_or_update+0x17/0x20 [ 12.017067] x509_load_certificate_list+0x174/0x200 [ 12.017281] regulatory_init_db+0xee/0x3a0 [ 12.017429] do_one_initcall+0xd8/0x370 [ 12.017563] kernel_init_freeable+0x420/0x6f0 [ 12.017852] kernel_init+0x23/0x1e0 [ 12.018034] ret_from_fork+0x116/0x1d0 [ 12.018222] ret_from_fork_asm+0x1a/0x30 [ 12.018419] [ 12.018530] Freed by task 1: [ 12.018789] kasan_save_stack+0x45/0x70 [ 12.018966] kasan_save_track+0x18/0x40 [ 12.019163] kasan_save_free_info+0x3f/0x60 [ 12.019329] __kasan_slab_free+0x56/0x70 [ 12.019519] kfree+0x222/0x3f0 [ 12.019774] x509_free_certificate.part.0+0xa9/0x140 [ 12.020020] x509_free_certificate+0x17/0x30 [ 12.020172] x509_key_preparse+0x5c9/0x8a0 [ 12.020314] asymmetric_key_preparse+0xb1/0x160 [ 12.020483] __key_create_or_update+0x43d/0xcc0 [ 12.020898] key_create_or_update+0x17/0x20 [ 12.021118] x509_load_certificate_list+0x174/0x200 [ 12.021354] regulatory_init_db+0xee/0x3a0 [ 12.021555] do_one_initcall+0xd8/0x370 [ 12.021837] kernel_init_freeable+0x420/0x6f0 [ 12.022064] kernel_init+0x23/0x1e0 [ 12.022194] ret_from_fork+0x116/0x1d0 [ 12.022390] ret_from_fork_asm+0x1a/0x30 [ 12.022583] [ 12.022776] The buggy address belongs to the object at ffff8881028942c0 [ 12.022776] which belongs to the cache kmalloc-16 of size 16 [ 12.023210] The buggy address is located 15 bytes to the right of [ 12.023210] allocated 16-byte region [ffff8881028942c0, ffff8881028942d0) [ 12.023768] [ 12.023869] The buggy address belongs to the physical page: [ 12.024123] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102894 [ 12.024473] flags: 0x200000000000000(node=0|zone=2) [ 12.024904] page_type: f5(slab) [ 12.025034] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.025262] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.025601] page dumped because: kasan: bad access detected [ 12.025960] [ 12.026060] Memory state around the buggy address: [ 12.026285] ffff888102894180: 00 02 fc fc 00 03 fc fc fa fb fc fc 00 02 fc fc [ 12.026614] ffff888102894200: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 12.026980] >ffff888102894280: 00 02 fc fc fa fb fc fc fa fb fc fc 00 07 fc fc [ 12.027298] ^ [ 12.027539] ffff888102894300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.027870] ffff888102894380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.028159] ==================================================================