Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.472577] ================================================================== [ 17.472637] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 17.472690] Write of size 4 at addr fff00000c7800475 by task kunit_try_catch/174 [ 17.472739] [ 17.472773] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.472854] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.472879] Hardware name: linux,dummy-virt (DT) [ 17.472911] Call trace: [ 17.472932] show_stack+0x20/0x38 (C) [ 17.472978] dump_stack_lvl+0x8c/0xd0 [ 17.473026] print_report+0x118/0x608 [ 17.473070] kasan_report+0xdc/0x128 [ 17.473113] kasan_check_range+0x100/0x1a8 [ 17.473160] __asan_memset+0x34/0x78 [ 17.473200] kmalloc_oob_memset_4+0x150/0x300 [ 17.473245] kunit_try_run_case+0x170/0x3f0 [ 17.473291] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.473342] kthread+0x328/0x630 [ 17.473384] ret_from_fork+0x10/0x20 [ 17.473431] [ 17.473493] Allocated by task 174: [ 17.473522] kasan_save_stack+0x3c/0x68 [ 17.473561] kasan_save_track+0x20/0x40 [ 17.473682] kasan_save_alloc_info+0x40/0x58 [ 17.473868] __kasan_kmalloc+0xd4/0xd8 [ 17.473976] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.474023] kmalloc_oob_memset_4+0xb0/0x300 [ 17.474078] kunit_try_run_case+0x170/0x3f0 [ 17.474141] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.474228] kthread+0x328/0x630 [ 17.474277] ret_from_fork+0x10/0x20 [ 17.474333] [ 17.474371] The buggy address belongs to the object at fff00000c7800400 [ 17.474371] which belongs to the cache kmalloc-128 of size 128 [ 17.474493] The buggy address is located 117 bytes inside of [ 17.474493] allocated 120-byte region [fff00000c7800400, fff00000c7800478) [ 17.474576] [ 17.474615] The buggy address belongs to the physical page: [ 17.474647] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107800 [ 17.474699] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.475166] page_type: f5(slab) [ 17.475297] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.475439] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.475552] page dumped because: kasan: bad access detected [ 17.475713] [ 17.476002] Memory state around the buggy address: [ 17.476042] fff00000c7800300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.476086] fff00000c7800380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.476128] >fff00000c7800400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.476659] ^ [ 17.476779] fff00000c7800480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.476864] fff00000c7800500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.477157] ==================================================================
[ 11.563855] ================================================================== [ 11.564599] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.564913] Write of size 4 at addr ffff88810312f075 by task kunit_try_catch/191 [ 11.565269] [ 11.565388] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.565522] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.565535] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.565554] Call Trace: [ 11.565565] <TASK> [ 11.565580] dump_stack_lvl+0x73/0xb0 [ 11.565607] print_report+0xd1/0x650 [ 11.565628] ? __virt_addr_valid+0x1db/0x2d0 [ 11.565648] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.565669] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.565690] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.565711] kasan_report+0x141/0x180 [ 11.565759] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.565784] kasan_check_range+0x10c/0x1c0 [ 11.565806] __asan_memset+0x27/0x50 [ 11.565825] kmalloc_oob_memset_4+0x166/0x330 [ 11.565846] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.565868] ? __schedule+0x10cc/0x2b60 [ 11.565890] ? __pfx_read_tsc+0x10/0x10 [ 11.565911] ? ktime_get_ts64+0x86/0x230 [ 11.565950] kunit_try_run_case+0x1a5/0x480 [ 11.565987] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.566008] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.566041] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.566100] ? __kthread_parkme+0x82/0x180 [ 11.566122] ? preempt_count_sub+0x50/0x80 [ 11.566144] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.566167] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.566189] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.566210] kthread+0x337/0x6f0 [ 11.566228] ? trace_preempt_on+0x20/0xc0 [ 11.566251] ? __pfx_kthread+0x10/0x10 [ 11.566270] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.566290] ? calculate_sigpending+0x7b/0xa0 [ 11.566313] ? __pfx_kthread+0x10/0x10 [ 11.566333] ret_from_fork+0x116/0x1d0 [ 11.566350] ? __pfx_kthread+0x10/0x10 [ 11.566370] ret_from_fork_asm+0x1a/0x30 [ 11.566399] </TASK> [ 11.566410] [ 11.574392] Allocated by task 191: [ 11.574632] kasan_save_stack+0x45/0x70 [ 11.574804] kasan_save_track+0x18/0x40 [ 11.575111] kasan_save_alloc_info+0x3b/0x50 [ 11.575311] __kasan_kmalloc+0xb7/0xc0 [ 11.575498] __kmalloc_cache_noprof+0x189/0x420 [ 11.575736] kmalloc_oob_memset_4+0xac/0x330 [ 11.575984] kunit_try_run_case+0x1a5/0x480 [ 11.576247] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.576608] kthread+0x337/0x6f0 [ 11.576731] ret_from_fork+0x116/0x1d0 [ 11.576876] ret_from_fork_asm+0x1a/0x30 [ 11.577142] [ 11.577265] The buggy address belongs to the object at ffff88810312f000 [ 11.577265] which belongs to the cache kmalloc-128 of size 128 [ 11.577802] The buggy address is located 117 bytes inside of [ 11.577802] allocated 120-byte region [ffff88810312f000, ffff88810312f078) [ 11.578419] [ 11.578517] The buggy address belongs to the physical page: [ 11.578789] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10312f [ 11.579348] flags: 0x200000000000000(node=0|zone=2) [ 11.579605] page_type: f5(slab) [ 11.579764] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.580097] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.580466] page dumped because: kasan: bad access detected [ 11.580749] [ 11.580979] Memory state around the buggy address: [ 11.581226] ffff88810312ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.581616] ffff88810312ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.581876] >ffff88810312f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.582112] ^ [ 11.582792] ffff88810312f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.583035] ffff88810312f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.583381] ==================================================================