Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.327331] ================================================================== [ 15.327450] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 15.327503] Write of size 2 at addr fff00000c5f9dc77 by task kunit_try_catch/173 [ 15.327861] [ 15.327918] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.328012] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.328039] Hardware name: linux,dummy-virt (DT) [ 15.328145] Call trace: [ 15.328171] show_stack+0x20/0x38 (C) [ 15.328250] dump_stack_lvl+0x8c/0xd0 [ 15.328369] print_report+0x118/0x5d0 [ 15.328421] kasan_report+0xdc/0x128 [ 15.328468] kasan_check_range+0x100/0x1a8 [ 15.328567] __asan_memset+0x34/0x78 [ 15.328614] kmalloc_oob_memset_2+0x150/0x2f8 [ 15.328848] kunit_try_run_case+0x170/0x3f0 [ 15.328914] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.329165] kthread+0x328/0x630 [ 15.329226] ret_from_fork+0x10/0x20 [ 15.329291] [ 15.329367] Allocated by task 173: [ 15.329397] kasan_save_stack+0x3c/0x68 [ 15.329438] kasan_save_track+0x20/0x40 [ 15.329474] kasan_save_alloc_info+0x40/0x58 [ 15.329513] __kasan_kmalloc+0xd4/0xd8 [ 15.329558] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.329595] kmalloc_oob_memset_2+0xb0/0x2f8 [ 15.329631] kunit_try_run_case+0x170/0x3f0 [ 15.329668] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.329716] kthread+0x328/0x630 [ 15.329747] ret_from_fork+0x10/0x20 [ 15.329936] [ 15.329970] The buggy address belongs to the object at fff00000c5f9dc00 [ 15.329970] which belongs to the cache kmalloc-128 of size 128 [ 15.330326] The buggy address is located 119 bytes inside of [ 15.330326] allocated 120-byte region [fff00000c5f9dc00, fff00000c5f9dc78) [ 15.330559] [ 15.330630] The buggy address belongs to the physical page: [ 15.330699] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f9d [ 15.330877] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.330925] page_type: f5(slab) [ 15.330983] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.331346] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.331490] page dumped because: kasan: bad access detected [ 15.331654] [ 15.331687] Memory state around the buggy address: [ 15.332036] fff00000c5f9db00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.332117] fff00000c5f9db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.332192] >fff00000c5f9dc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.332291] ^ [ 15.332422] fff00000c5f9dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.332577] fff00000c5f9dd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.332653] ==================================================================
[ 12.171812] ================================================================== [ 12.172304] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.172657] Write of size 2 at addr ffff888102f59777 by task kunit_try_catch/190 [ 12.173176] [ 12.173536] CPU: 1 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.173586] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.173597] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.173619] Call Trace: [ 12.173630] <TASK> [ 12.173647] dump_stack_lvl+0x73/0xb0 [ 12.173678] print_report+0xd1/0x610 [ 12.173700] ? __virt_addr_valid+0x1db/0x2d0 [ 12.173725] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.173746] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.173768] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.173789] kasan_report+0x141/0x180 [ 12.173810] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.173835] kasan_check_range+0x10c/0x1c0 [ 12.173858] __asan_memset+0x27/0x50 [ 12.173877] kmalloc_oob_memset_2+0x166/0x330 [ 12.173899] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.173921] ? __schedule+0x10cc/0x2b60 [ 12.173943] ? __pfx_read_tsc+0x10/0x10 [ 12.173963] ? ktime_get_ts64+0x86/0x230 [ 12.173987] kunit_try_run_case+0x1a5/0x480 [ 12.174012] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.174033] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.174106] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.174130] ? __kthread_parkme+0x82/0x180 [ 12.174151] ? preempt_count_sub+0x50/0x80 [ 12.174175] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.174204] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.174227] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.174251] kthread+0x337/0x6f0 [ 12.174269] ? trace_preempt_on+0x20/0xc0 [ 12.174292] ? __pfx_kthread+0x10/0x10 [ 12.174311] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.174332] ? calculate_sigpending+0x7b/0xa0 [ 12.174356] ? __pfx_kthread+0x10/0x10 [ 12.174376] ret_from_fork+0x116/0x1d0 [ 12.174394] ? __pfx_kthread+0x10/0x10 [ 12.174414] ret_from_fork_asm+0x1a/0x30 [ 12.174445] </TASK> [ 12.174455] [ 12.181739] Allocated by task 190: [ 12.181875] kasan_save_stack+0x45/0x70 [ 12.182052] kasan_save_track+0x18/0x40 [ 12.182299] kasan_save_alloc_info+0x3b/0x50 [ 12.182523] __kasan_kmalloc+0xb7/0xc0 [ 12.182710] __kmalloc_cache_noprof+0x189/0x420 [ 12.182932] kmalloc_oob_memset_2+0xac/0x330 [ 12.183299] kunit_try_run_case+0x1a5/0x480 [ 12.183739] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.184011] kthread+0x337/0x6f0 [ 12.184280] ret_from_fork+0x116/0x1d0 [ 12.184476] ret_from_fork_asm+0x1a/0x30 [ 12.184634] [ 12.184730] The buggy address belongs to the object at ffff888102f59700 [ 12.184730] which belongs to the cache kmalloc-128 of size 128 [ 12.185291] The buggy address is located 119 bytes inside of [ 12.185291] allocated 120-byte region [ffff888102f59700, ffff888102f59778) [ 12.185778] [ 12.185874] The buggy address belongs to the physical page: [ 12.186130] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f59 [ 12.186476] flags: 0x200000000000000(node=0|zone=2) [ 12.186693] page_type: f5(slab) [ 12.186863] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.187201] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.187585] page dumped because: kasan: bad access detected [ 12.187802] [ 12.187894] Memory state around the buggy address: [ 12.188250] ffff888102f59600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.188534] ffff888102f59680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.188847] >ffff888102f59700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.189229] ^ [ 12.189445] ffff888102f59780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.189762] ffff888102f59800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.190023] ==================================================================