Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.372941] ================================================================== [ 21.373887] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x15c/0x318 [ 21.374653] Write of size 4 at addr fff00000c41c1775 by task kunit_try_catch/162 [ 21.375429] [ 21.376186] CPU: 0 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 21.376870] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.376910] Hardware name: linux,dummy-virt (DT) [ 21.376947] Call trace: [ 21.377003] dump_backtrace+0x9c/0x128 [ 21.377060] show_stack+0x20/0x38 [ 21.377102] dump_stack_lvl+0x8c/0xd0 [ 21.377147] print_report+0x118/0x5f0 [ 21.377191] kasan_report+0xdc/0x128 [ 21.377234] kasan_check_range+0x100/0x1a8 [ 21.377280] __asan_memset+0x34/0x78 [ 21.377324] kmalloc_oob_memset_4+0x15c/0x318 [ 21.377373] kunit_try_run_case+0x170/0x3f0 [ 21.377418] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.377469] kthread+0x24c/0x2d0 [ 21.377515] ret_from_fork+0x10/0x20 [ 21.377563] [ 21.385843] Allocated by task 162: [ 21.386399] kasan_save_stack+0x3c/0x68 [ 21.386949] kasan_save_track+0x20/0x40 [ 21.387886] kasan_save_alloc_info+0x40/0x58 [ 21.388595] __kasan_kmalloc+0xd4/0xd8 [ 21.388992] __kmalloc_cache_noprof+0x154/0x320 [ 21.389747] kmalloc_oob_memset_4+0xb0/0x318 [ 21.390391] kunit_try_run_case+0x170/0x3f0 [ 21.390942] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.391976] kthread+0x24c/0x2d0 [ 21.392611] ret_from_fork+0x10/0x20 [ 21.393093] [ 21.393613] The buggy address belongs to the object at fff00000c41c1700 [ 21.393613] which belongs to the cache kmalloc-128 of size 128 [ 21.394841] The buggy address is located 117 bytes inside of [ 21.394841] allocated 120-byte region [fff00000c41c1700, fff00000c41c1778) [ 21.396242] [ 21.396553] The buggy address belongs to the physical page: [ 21.397525] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1041c1 [ 21.398385] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.399133] page_type: f5(slab) [ 21.400033] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 21.400692] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 21.401503] page dumped because: kasan: bad access detected [ 21.402087] [ 21.402392] Memory state around the buggy address: [ 21.402868] fff00000c41c1600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 21.404045] fff00000c41c1680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.404676] >fff00000c41c1700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 21.405409] ^ [ 21.406082] fff00000c41c1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.406799] fff00000c41c1800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.408211] ==================================================================
[ 17.719194] ================================================================== [ 17.720279] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x167/0x330 [ 17.720845] Write of size 4 at addr ffff88810230d375 by task kunit_try_catch/179 [ 17.721557] [ 17.721813] CPU: 1 UID: 0 PID: 179 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 17.721933] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.721970] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.722027] Call Trace: [ 17.722067] <TASK> [ 17.722113] dump_stack_lvl+0x73/0xb0 [ 17.722193] print_report+0xd1/0x640 [ 17.722287] ? __virt_addr_valid+0x1db/0x2d0 [ 17.722363] ? kmalloc_oob_memset_4+0x167/0x330 [ 17.722433] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.722505] ? kmalloc_oob_memset_4+0x167/0x330 [ 17.722577] kasan_report+0x140/0x180 [ 17.722655] ? kmalloc_oob_memset_4+0x167/0x330 [ 17.722745] kasan_check_range+0x10c/0x1c0 [ 17.722819] __asan_memset+0x27/0x50 [ 17.722888] kmalloc_oob_memset_4+0x167/0x330 [ 17.722968] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 17.723048] ? __schedule+0xc49/0x27a0 [ 17.723121] ? __pfx_read_tsc+0x10/0x10 [ 17.723186] ? ktime_get_ts64+0x84/0x230 [ 17.723358] kunit_try_run_case+0x1a6/0x480 [ 17.723404] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.723432] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 17.723579] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.723616] ? __kthread_parkme+0x82/0x160 [ 17.723643] ? preempt_count_sub+0x50/0x80 [ 17.723672] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.723700] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.723736] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.723772] kthread+0x257/0x310 [ 17.723795] ? __pfx_kthread+0x10/0x10 [ 17.723849] ret_from_fork+0x41/0x80 [ 17.723883] ? __pfx_kthread+0x10/0x10 [ 17.723908] ret_from_fork_asm+0x1a/0x30 [ 17.723949] </TASK> [ 17.723962] [ 17.738944] Allocated by task 179: [ 17.739361] kasan_save_stack+0x45/0x70 [ 17.740242] kasan_save_track+0x18/0x40 [ 17.740775] kasan_save_alloc_info+0x3b/0x50 [ 17.741256] __kasan_kmalloc+0xb7/0xc0 [ 17.741745] __kmalloc_cache_noprof+0x168/0x350 [ 17.742168] kmalloc_oob_memset_4+0xad/0x330 [ 17.742613] kunit_try_run_case+0x1a6/0x480 [ 17.743036] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.743530] kthread+0x257/0x310 [ 17.744049] ret_from_fork+0x41/0x80 [ 17.744568] ret_from_fork_asm+0x1a/0x30 [ 17.745042] [ 17.745284] The buggy address belongs to the object at ffff88810230d300 [ 17.745284] which belongs to the cache kmalloc-128 of size 128 [ 17.746710] The buggy address is located 117 bytes inside of [ 17.746710] allocated 120-byte region [ffff88810230d300, ffff88810230d378) [ 17.747811] [ 17.748083] The buggy address belongs to the physical page: [ 17.748713] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10230d [ 17.749366] flags: 0x200000000000000(node=0|zone=2) [ 17.749858] page_type: f5(slab) [ 17.750148] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 17.750831] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 17.751488] page dumped because: kasan: bad access detected [ 17.752427] [ 17.752768] Memory state around the buggy address: [ 17.753189] ffff88810230d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 17.753845] ffff88810230d280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.754355] >ffff88810230d300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.755082] ^ [ 17.755843] ffff88810230d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.756856] ffff88810230d400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.757583] ==================================================================