Date
June 18, 2025, 6:43 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.417506] ================================================================== [ 20.417739] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 20.418026] Write of size 8 at addr fff00000c6423971 by task kunit_try_catch/186 [ 20.418317] [ 20.418411] CPU: 0 UID: 0 PID: 186 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT [ 20.418648] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.418724] Hardware name: linux,dummy-virt (DT) [ 20.418778] Call trace: [ 20.418818] show_stack+0x20/0x38 (C) [ 20.418924] dump_stack_lvl+0x8c/0xd0 [ 20.419113] print_report+0x118/0x608 [ 20.419321] kasan_report+0xdc/0x128 [ 20.419520] kasan_check_range+0x100/0x1a8 [ 20.419778] __asan_memset+0x34/0x78 [ 20.420063] kmalloc_oob_memset_8+0x150/0x2f8 [ 20.420237] kunit_try_run_case+0x170/0x3f0 [ 20.420595] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.420851] kthread+0x328/0x630 [ 20.421114] ret_from_fork+0x10/0x20 [ 20.421226] [ 20.421276] Allocated by task 186: [ 20.421621] kasan_save_stack+0x3c/0x68 [ 20.421720] kasan_save_track+0x20/0x40 [ 20.421951] kasan_save_alloc_info+0x40/0x58 [ 20.422118] __kasan_kmalloc+0xd4/0xd8 [ 20.422194] __kmalloc_cache_noprof+0x16c/0x3c0 [ 20.422275] kmalloc_oob_memset_8+0xb0/0x2f8 [ 20.422358] kunit_try_run_case+0x170/0x3f0 [ 20.422552] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.422771] kthread+0x328/0x630 [ 20.422947] ret_from_fork+0x10/0x20 [ 20.423055] [ 20.423277] The buggy address belongs to the object at fff00000c6423900 [ 20.423277] which belongs to the cache kmalloc-128 of size 128 [ 20.423412] The buggy address is located 113 bytes inside of [ 20.423412] allocated 120-byte region [fff00000c6423900, fff00000c6423978) [ 20.423536] [ 20.423579] The buggy address belongs to the physical page: [ 20.423764] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106423 [ 20.424002] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.424254] page_type: f5(slab) [ 20.424402] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 20.424767] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.424861] page dumped because: kasan: bad access detected [ 20.424931] [ 20.424972] Memory state around the buggy address: [ 20.425054] fff00000c6423800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.425152] fff00000c6423880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.425288] >fff00000c6423900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 20.425362] ^ [ 20.425569] fff00000c6423980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.425891] fff00000c6423a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.425974] ==================================================================
[ 11.261698] ================================================================== [ 11.262351] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 11.262660] Write of size 8 at addr ffff888102c54871 by task kunit_try_catch/202 [ 11.262951] [ 11.263050] CPU: 1 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) [ 11.263097] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.263108] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.263127] Call Trace: [ 11.263139] <TASK> [ 11.263154] dump_stack_lvl+0x73/0xb0 [ 11.263181] print_report+0xd1/0x650 [ 11.263201] ? __virt_addr_valid+0x1db/0x2d0 [ 11.263258] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.263279] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.263303] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.263323] kasan_report+0x141/0x180 [ 11.263364] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.263402] kasan_check_range+0x10c/0x1c0 [ 11.263437] __asan_memset+0x27/0x50 [ 11.263459] kmalloc_oob_memset_8+0x166/0x330 [ 11.263492] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 11.263513] ? __schedule+0x10cc/0x2b60 [ 11.263533] ? __pfx_read_tsc+0x10/0x10 [ 11.263554] ? ktime_get_ts64+0x86/0x230 [ 11.263578] kunit_try_run_case+0x1a5/0x480 [ 11.263600] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.263620] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.263642] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.263663] ? __kthread_parkme+0x82/0x180 [ 11.263682] ? preempt_count_sub+0x50/0x80 [ 11.263704] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.263726] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.263747] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.263768] kthread+0x337/0x6f0 [ 11.263787] ? trace_preempt_on+0x20/0xc0 [ 11.263809] ? __pfx_kthread+0x10/0x10 [ 11.263828] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.263847] ? calculate_sigpending+0x7b/0xa0 [ 11.263869] ? __pfx_kthread+0x10/0x10 [ 11.263889] ret_from_fork+0x116/0x1d0 [ 11.263906] ? __pfx_kthread+0x10/0x10 [ 11.263925] ret_from_fork_asm+0x1a/0x30 [ 11.263953] </TASK> [ 11.263963] [ 11.271810] Allocated by task 202: [ 11.272012] kasan_save_stack+0x45/0x70 [ 11.272264] kasan_save_track+0x18/0x40 [ 11.272540] kasan_save_alloc_info+0x3b/0x50 [ 11.272764] __kasan_kmalloc+0xb7/0xc0 [ 11.272953] __kmalloc_cache_noprof+0x189/0x420 [ 11.273162] kmalloc_oob_memset_8+0xac/0x330 [ 11.273373] kunit_try_run_case+0x1a5/0x480 [ 11.273734] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.274035] kthread+0x337/0x6f0 [ 11.274224] ret_from_fork+0x116/0x1d0 [ 11.274521] ret_from_fork_asm+0x1a/0x30 [ 11.274742] [ 11.274819] The buggy address belongs to the object at ffff888102c54800 [ 11.274819] which belongs to the cache kmalloc-128 of size 128 [ 11.275286] The buggy address is located 113 bytes inside of [ 11.275286] allocated 120-byte region [ffff888102c54800, ffff888102c54878) [ 11.275785] [ 11.275849] The buggy address belongs to the physical page: [ 11.276015] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c54 [ 11.276360] flags: 0x200000000000000(node=0|zone=2) [ 11.276587] page_type: f5(slab) [ 11.276752] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.277078] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.277653] page dumped because: kasan: bad access detected [ 11.277912] [ 11.277999] Memory state around the buggy address: [ 11.278245] ffff888102c54700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.278603] ffff888102c54780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.278954] >ffff888102c54800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.279164] ^ [ 11.279399] ffff888102c54880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.279687] ffff888102c54900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.280022] ==================================================================