Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 26.574693] ================================================================== [ 26.574769] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 26.574836] Write of size 16 at addr fff00000c3f9daa0 by task kunit_try_catch/178 [ 26.574886] [ 26.574936] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 26.575021] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.575046] Hardware name: linux,dummy-virt (DT) [ 26.575078] Call trace: [ 26.575101] show_stack+0x20/0x38 (C) [ 26.575163] dump_stack_lvl+0x8c/0xd0 [ 26.575221] print_report+0x118/0x608 [ 26.575268] kasan_report+0xdc/0x128 [ 26.575326] __asan_report_store16_noabort+0x20/0x30 [ 26.575374] kmalloc_oob_16+0x3a0/0x3f8 [ 26.575439] kunit_try_run_case+0x170/0x3f0 [ 26.575488] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.575539] kthread+0x328/0x630 [ 26.575579] ret_from_fork+0x10/0x20 [ 26.575626] [ 26.575651] Allocated by task 178: [ 26.575680] kasan_save_stack+0x3c/0x68 [ 26.575718] kasan_save_track+0x20/0x40 [ 26.575754] kasan_save_alloc_info+0x40/0x58 [ 26.575788] __kasan_kmalloc+0xd4/0xd8 [ 26.575831] __kmalloc_cache_noprof+0x16c/0x3c0 [ 26.576637] kmalloc_oob_16+0xb4/0x3f8 [ 26.576788] kunit_try_run_case+0x170/0x3f0 [ 26.576937] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.577085] kthread+0x328/0x630 [ 26.577118] ret_from_fork+0x10/0x20 [ 26.577332] [ 26.577494] The buggy address belongs to the object at fff00000c3f9daa0 [ 26.577494] which belongs to the cache kmalloc-16 of size 16 [ 26.577625] The buggy address is located 0 bytes inside of [ 26.577625] allocated 13-byte region [fff00000c3f9daa0, fff00000c3f9daad) [ 26.577787] [ 26.577997] The buggy address belongs to the physical page: [ 26.578105] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f9d [ 26.578546] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 26.578668] page_type: f5(slab) [ 26.578753] raw: 0bfffe0000000000 fff00000c0001640 dead000000000100 dead000000000122 [ 26.578856] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 26.578996] page dumped because: kasan: bad access detected [ 26.579064] [ 26.579082] Memory state around the buggy address: [ 26.579285] fff00000c3f9d980: fa fb fc fc fa fb fc fc 00 00 fc fc fa fb fc fc [ 26.579591] fff00000c3f9da00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 26.579727] >fff00000c3f9da80: fa fb fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc [ 26.579971] ^ [ 26.580044] fff00000c3f9db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.580085] fff00000c3f9db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.580130] ==================================================================
[ 21.825356] ================================================================== [ 21.825955] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 21.826174] Write of size 16 at addr ffff8881016c5460 by task kunit_try_catch/195 [ 21.826391] [ 21.826475] CPU: 0 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 21.826520] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.826532] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.826552] Call Trace: [ 21.826565] <TASK> [ 21.826581] dump_stack_lvl+0x73/0xb0 [ 21.826607] print_report+0xd1/0x650 [ 21.826626] ? __virt_addr_valid+0x1db/0x2d0 [ 21.826649] ? kmalloc_oob_16+0x452/0x4a0 [ 21.826667] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.826690] ? kmalloc_oob_16+0x452/0x4a0 [ 21.826709] kasan_report+0x141/0x180 [ 21.826728] ? kmalloc_oob_16+0x452/0x4a0 [ 21.826751] __asan_report_store16_noabort+0x1b/0x30 [ 21.826773] kmalloc_oob_16+0x452/0x4a0 [ 21.826792] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 21.826811] ? __schedule+0x10cc/0x2b60 [ 21.826834] ? __pfx_read_tsc+0x10/0x10 [ 21.826855] ? ktime_get_ts64+0x86/0x230 [ 21.826879] kunit_try_run_case+0x1a5/0x480 [ 21.826903] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.826924] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.827288] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.827321] ? __kthread_parkme+0x82/0x180 [ 21.827342] ? preempt_count_sub+0x50/0x80 [ 21.827364] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.827387] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.827583] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.827615] kthread+0x337/0x6f0 [ 21.827635] ? trace_preempt_on+0x20/0xc0 [ 21.827659] ? __pfx_kthread+0x10/0x10 [ 21.827678] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.827700] ? calculate_sigpending+0x7b/0xa0 [ 21.827722] ? __pfx_kthread+0x10/0x10 [ 21.827741] ret_from_fork+0x116/0x1d0 [ 21.827759] ? __pfx_kthread+0x10/0x10 [ 21.827778] ret_from_fork_asm+0x1a/0x30 [ 21.827830] </TASK> [ 21.827841] [ 21.844423] Allocated by task 195: [ 21.844902] kasan_save_stack+0x45/0x70 [ 21.845589] kasan_save_track+0x18/0x40 [ 21.845999] kasan_save_alloc_info+0x3b/0x50 [ 21.846559] __kasan_kmalloc+0xb7/0xc0 [ 21.847131] __kmalloc_cache_noprof+0x189/0x420 [ 21.847474] kmalloc_oob_16+0xa8/0x4a0 [ 21.847611] kunit_try_run_case+0x1a5/0x480 [ 21.847753] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.847928] kthread+0x337/0x6f0 [ 21.848098] ret_from_fork+0x116/0x1d0 [ 21.848278] ret_from_fork_asm+0x1a/0x30 [ 21.848491] [ 21.848643] The buggy address belongs to the object at ffff8881016c5460 [ 21.848643] which belongs to the cache kmalloc-16 of size 16 [ 21.849496] The buggy address is located 0 bytes inside of [ 21.849496] allocated 13-byte region [ffff8881016c5460, ffff8881016c546d) [ 21.850505] [ 21.850689] The buggy address belongs to the physical page: [ 21.851281] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1016c5 [ 21.852022] flags: 0x200000000000000(node=0|zone=2) [ 21.852186] page_type: f5(slab) [ 21.852302] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 21.852529] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 21.852748] page dumped because: kasan: bad access detected [ 21.852917] [ 21.852993] Memory state around the buggy address: [ 21.853198] ffff8881016c5300: 00 06 fc fc 00 06 fc fc fa fb fc fc fa fb fc fc [ 21.853431] ffff8881016c5380: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 21.853702] >ffff8881016c5400: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 21.854038] ^ [ 21.854402] ffff8881016c5480: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.854649] ffff8881016c5500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.854946] ==================================================================