Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.279961] ================================================================== [ 15.280226] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 15.280283] Write of size 16 at addr fff00000c5f9c420 by task kunit_try_catch/167 [ 15.280370] [ 15.280466] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.280649] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.280679] Hardware name: linux,dummy-virt (DT) [ 15.280711] Call trace: [ 15.280752] show_stack+0x20/0x38 (C) [ 15.281019] dump_stack_lvl+0x8c/0xd0 [ 15.281098] print_report+0x118/0x5d0 [ 15.281196] kasan_report+0xdc/0x128 [ 15.281247] __asan_report_store16_noabort+0x20/0x30 [ 15.281298] kmalloc_oob_16+0x3a0/0x3f8 [ 15.281560] kunit_try_run_case+0x170/0x3f0 [ 15.281636] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.281700] kthread+0x328/0x630 [ 15.281775] ret_from_fork+0x10/0x20 [ 15.281823] [ 15.281842] Allocated by task 167: [ 15.282012] kasan_save_stack+0x3c/0x68 [ 15.282064] kasan_save_track+0x20/0x40 [ 15.282153] kasan_save_alloc_info+0x40/0x58 [ 15.282205] __kasan_kmalloc+0xd4/0xd8 [ 15.282354] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.282462] kmalloc_oob_16+0xb4/0x3f8 [ 15.282522] kunit_try_run_case+0x170/0x3f0 [ 15.282569] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.282620] kthread+0x328/0x630 [ 15.282652] ret_from_fork+0x10/0x20 [ 15.282695] [ 15.282714] The buggy address belongs to the object at fff00000c5f9c420 [ 15.282714] which belongs to the cache kmalloc-16 of size 16 [ 15.282772] The buggy address is located 0 bytes inside of [ 15.282772] allocated 13-byte region [fff00000c5f9c420, fff00000c5f9c42d) [ 15.282832] [ 15.282850] The buggy address belongs to the physical page: [ 15.282888] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f9c [ 15.282949] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.283002] page_type: f5(slab) [ 15.283049] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 15.283103] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.283151] page dumped because: kasan: bad access detected [ 15.283191] [ 15.283208] Memory state around the buggy address: [ 15.283238] fff00000c5f9c300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 15.283278] fff00000c5f9c380: fa fb fc fc fa fb fc fc fa fb fc fc 00 04 fc fc [ 15.283328] >fff00000c5f9c400: fa fb fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc [ 15.283365] ^ [ 15.283404] fff00000c5f9c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.283451] fff00000c5f9c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.283494] ==================================================================
[ 12.097906] ================================================================== [ 12.098568] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.098869] Write of size 16 at addr ffff8881016429e0 by task kunit_try_catch/184 [ 12.099176] [ 12.099373] CPU: 0 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.099420] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.099431] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.099453] Call Trace: [ 12.099466] <TASK> [ 12.099484] dump_stack_lvl+0x73/0xb0 [ 12.099528] print_report+0xd1/0x610 [ 12.099550] ? __virt_addr_valid+0x1db/0x2d0 [ 12.099574] ? kmalloc_oob_16+0x452/0x4a0 [ 12.099593] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.099614] ? kmalloc_oob_16+0x452/0x4a0 [ 12.099634] kasan_report+0x141/0x180 [ 12.099655] ? kmalloc_oob_16+0x452/0x4a0 [ 12.099679] __asan_report_store16_noabort+0x1b/0x30 [ 12.099704] kmalloc_oob_16+0x452/0x4a0 [ 12.099724] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.099744] ? __schedule+0x10cc/0x2b60 [ 12.099766] ? __pfx_read_tsc+0x10/0x10 [ 12.099787] ? ktime_get_ts64+0x86/0x230 [ 12.099812] kunit_try_run_case+0x1a5/0x480 [ 12.099838] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.099859] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.099883] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.099905] ? __kthread_parkme+0x82/0x180 [ 12.099926] ? preempt_count_sub+0x50/0x80 [ 12.099950] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.099973] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.099996] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.100022] kthread+0x337/0x6f0 [ 12.100041] ? trace_preempt_on+0x20/0xc0 [ 12.100065] ? __pfx_kthread+0x10/0x10 [ 12.100084] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.100104] ? calculate_sigpending+0x7b/0xa0 [ 12.100128] ? __pfx_kthread+0x10/0x10 [ 12.100148] ret_from_fork+0x116/0x1d0 [ 12.100167] ? __pfx_kthread+0x10/0x10 [ 12.100187] ret_from_fork_asm+0x1a/0x30 [ 12.100218] </TASK> [ 12.100228] [ 12.107097] Allocated by task 184: [ 12.107415] kasan_save_stack+0x45/0x70 [ 12.107630] kasan_save_track+0x18/0x40 [ 12.107818] kasan_save_alloc_info+0x3b/0x50 [ 12.108031] __kasan_kmalloc+0xb7/0xc0 [ 12.108314] __kmalloc_cache_noprof+0x189/0x420 [ 12.108525] kmalloc_oob_16+0xa8/0x4a0 [ 12.108669] kunit_try_run_case+0x1a5/0x480 [ 12.108857] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.109201] kthread+0x337/0x6f0 [ 12.109362] ret_from_fork+0x116/0x1d0 [ 12.109537] ret_from_fork_asm+0x1a/0x30 [ 12.109681] [ 12.109756] The buggy address belongs to the object at ffff8881016429e0 [ 12.109756] which belongs to the cache kmalloc-16 of size 16 [ 12.110383] The buggy address is located 0 bytes inside of [ 12.110383] allocated 13-byte region [ffff8881016429e0, ffff8881016429ed) [ 12.110864] [ 12.110959] The buggy address belongs to the physical page: [ 12.111422] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101642 [ 12.111709] flags: 0x200000000000000(node=0|zone=2) [ 12.111875] page_type: f5(slab) [ 12.111997] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.112227] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.112640] page dumped because: kasan: bad access detected [ 12.112954] [ 12.113045] Memory state around the buggy address: [ 12.113262] ffff888101642880: 00 02 fc fc 00 06 fc fc 00 06 fc fc 00 04 fc fc [ 12.113483] ffff888101642900: 00 04 fc fc 00 01 fc fc 00 01 fc fc 00 04 fc fc [ 12.113857] >ffff888101642980: 00 04 fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 12.114251] ^ [ 12.114457] ffff888101642a00: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.114743] ffff888101642a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.115108] ==================================================================