Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.443593] ================================================================== [ 21.443791] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 21.443949] Write of size 16 at addr fff00000c66b1020 by task kunit_try_catch/166 [ 21.444074] [ 21.444163] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.444375] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.444519] Hardware name: linux,dummy-virt (DT) [ 21.444594] Call trace: [ 21.444649] show_stack+0x20/0x38 (C) [ 21.444829] dump_stack_lvl+0x8c/0xd0 [ 21.444971] print_report+0x118/0x608 [ 21.445083] kasan_report+0xdc/0x128 [ 21.445387] __asan_report_store16_noabort+0x20/0x30 [ 21.445763] kmalloc_oob_16+0x3a0/0x3f8 [ 21.445897] kunit_try_run_case+0x170/0x3f0 [ 21.446191] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.446341] kthread+0x328/0x630 [ 21.446480] ret_from_fork+0x10/0x20 [ 21.446590] [ 21.446633] Allocated by task 166: [ 21.446704] kasan_save_stack+0x3c/0x68 [ 21.446840] kasan_save_track+0x20/0x40 [ 21.446924] kasan_save_alloc_info+0x40/0x58 [ 21.447276] __kasan_kmalloc+0xd4/0xd8 [ 21.447379] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.447518] kmalloc_oob_16+0xb4/0x3f8 [ 21.447596] kunit_try_run_case+0x170/0x3f0 [ 21.447744] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.447864] kthread+0x328/0x630 [ 21.447944] ret_from_fork+0x10/0x20 [ 21.448026] [ 21.448072] The buggy address belongs to the object at fff00000c66b1020 [ 21.448072] which belongs to the cache kmalloc-16 of size 16 [ 21.448304] The buggy address is located 0 bytes inside of [ 21.448304] allocated 13-byte region [fff00000c66b1020, fff00000c66b102d) [ 21.448684] [ 21.448837] The buggy address belongs to the physical page: [ 21.448924] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066b1 [ 21.449054] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.449184] page_type: f5(slab) [ 21.449284] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 21.449418] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 21.449519] page dumped because: kasan: bad access detected [ 21.449600] [ 21.449654] Memory state around the buggy address: [ 21.449731] fff00000c66b0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.449907] fff00000c66b0f80: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc [ 21.450202] >fff00000c66b1000: fa fb fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc [ 21.450367] ^ [ 21.450452] fff00000c66b1080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.450600] fff00000c66b1100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.450695] ==================================================================
[ 10.868775] ================================================================== [ 10.869298] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 10.869666] Write of size 16 at addr ffff888101c55f60 by task kunit_try_catch/183 [ 10.869977] [ 10.870070] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.870117] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.870129] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.870492] Call Trace: [ 10.870505] <TASK> [ 10.870521] dump_stack_lvl+0x73/0xb0 [ 10.870555] print_report+0xd1/0x650 [ 10.870578] ? __virt_addr_valid+0x1db/0x2d0 [ 10.870602] ? kmalloc_oob_16+0x452/0x4a0 [ 10.870634] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.870656] ? kmalloc_oob_16+0x452/0x4a0 [ 10.870677] kasan_report+0x141/0x180 [ 10.870700] ? kmalloc_oob_16+0x452/0x4a0 [ 10.870725] __asan_report_store16_noabort+0x1b/0x30 [ 10.870747] kmalloc_oob_16+0x452/0x4a0 [ 10.870787] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 10.870819] ? __schedule+0x10cc/0x2b60 [ 10.870843] ? __pfx_read_tsc+0x10/0x10 [ 10.870882] ? ktime_get_ts64+0x86/0x230 [ 10.870906] kunit_try_run_case+0x1a5/0x480 [ 10.870929] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.870948] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.870973] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.871006] ? __kthread_parkme+0x82/0x180 [ 10.871092] ? preempt_count_sub+0x50/0x80 [ 10.871115] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.871136] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.871160] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.871183] kthread+0x337/0x6f0 [ 10.871203] ? trace_preempt_on+0x20/0xc0 [ 10.871225] ? __pfx_kthread+0x10/0x10 [ 10.871245] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.871268] ? calculate_sigpending+0x7b/0xa0 [ 10.871291] ? __pfx_kthread+0x10/0x10 [ 10.871313] ret_from_fork+0x116/0x1d0 [ 10.871331] ? __pfx_kthread+0x10/0x10 [ 10.871351] ret_from_fork_asm+0x1a/0x30 [ 10.871381] </TASK> [ 10.871392] [ 10.880719] Allocated by task 183: [ 10.881154] kasan_save_stack+0x45/0x70 [ 10.881472] kasan_save_track+0x18/0x40 [ 10.881854] kasan_save_alloc_info+0x3b/0x50 [ 10.882132] __kasan_kmalloc+0xb7/0xc0 [ 10.882309] __kmalloc_cache_noprof+0x189/0x420 [ 10.882514] kmalloc_oob_16+0xa8/0x4a0 [ 10.882706] kunit_try_run_case+0x1a5/0x480 [ 10.883180] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.883489] kthread+0x337/0x6f0 [ 10.883902] ret_from_fork+0x116/0x1d0 [ 10.884315] ret_from_fork_asm+0x1a/0x30 [ 10.884635] [ 10.884885] The buggy address belongs to the object at ffff888101c55f60 [ 10.884885] which belongs to the cache kmalloc-16 of size 16 [ 10.885800] The buggy address is located 0 bytes inside of [ 10.885800] allocated 13-byte region [ffff888101c55f60, ffff888101c55f6d) [ 10.886698] [ 10.886947] The buggy address belongs to the physical page: [ 10.887455] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101c55 [ 10.887950] flags: 0x200000000000000(node=0|zone=2) [ 10.888402] page_type: f5(slab) [ 10.888868] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 10.889316] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 10.889766] page dumped because: kasan: bad access detected [ 10.890031] [ 10.890116] Memory state around the buggy address: [ 10.890311] ffff888101c55e00: 00 05 fc fc 00 00 fc fc 00 06 fc fc 00 06 fc fc [ 10.890885] ffff888101c55e80: 00 00 fc fc 00 02 fc fc 00 02 fc fc 00 06 fc fc [ 10.891325] >ffff888101c55f00: 00 06 fc fc 00 05 fc fc fa fb fc fc 00 05 fc fc [ 10.891863] ^ [ 10.892583] ffff888101c55f80: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.893251] ffff888101c56000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.893543] ==================================================================