Date
Dec. 6, 2024, 3:11 p.m.
Environment | |
---|---|
qemu-x86_64 |
[ 31.728883] ================================================================== [ 31.730487] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x33/0xa0 [ 31.730848] Write of size 121 at addr ffff888102933c00 by task kunit_try_catch/293 [ 31.731708] [ 31.731965] CPU: 0 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241206 #1 [ 31.733657] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.734397] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 31.735256] Call Trace: [ 31.735406] <TASK> [ 31.735542] dump_stack_lvl+0x73/0xb0 [ 31.735750] print_report+0xd1/0x640 [ 31.736008] ? __virt_addr_valid+0x1db/0x2d0 [ 31.736448] ? kasan_complete_mode_report_info+0x2a/0x200 [ 31.737873] kasan_report+0x102/0x140 [ 31.738401] ? _copy_from_user+0x33/0xa0 [ 31.738977] ? _copy_from_user+0x33/0xa0 [ 31.739444] kasan_check_range+0x10c/0x1c0 [ 31.740530] __kasan_check_write+0x18/0x20 [ 31.740998] _copy_from_user+0x33/0xa0 [ 31.741534] copy_user_test_oob+0x2bf/0x10f0 [ 31.742025] ? __pfx_copy_user_test_oob+0x10/0x10 [ 31.743031] ? finish_task_switch.isra.0+0x153/0x700 [ 31.743659] ? __switch_to+0x5d9/0xf60 [ 31.744150] ? __schedule+0xc70/0x27e0 [ 31.744602] ? __pfx_read_tsc+0x10/0x10 [ 31.745104] ? ktime_get_ts64+0x86/0x230 [ 31.745683] kunit_try_run_case+0x1b3/0x490 [ 31.746183] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.746754] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 31.747402] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 31.747972] ? __kthread_parkme+0x82/0x160 [ 31.748618] ? preempt_count_sub+0x50/0x80 [ 31.749051] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.749689] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 31.750498] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.751126] kthread+0x257/0x310 [ 31.751482] ? __pfx_kthread+0x10/0x10 [ 31.751912] ret_from_fork+0x41/0x80 [ 31.752429] ? __pfx_kthread+0x10/0x10 [ 31.752824] ret_from_fork_asm+0x1a/0x30 [ 31.753596] </TASK> [ 31.753831] [ 31.754197] Allocated by task 293: [ 31.754551] kasan_save_stack+0x3d/0x60 [ 31.755123] kasan_save_track+0x18/0x40 [ 31.755670] kasan_save_alloc_info+0x3b/0x50 [ 31.756255] __kasan_kmalloc+0xb7/0xc0 [ 31.756811] __kmalloc_noprof+0x1c4/0x500 [ 31.757391] kunit_kmalloc_array+0x25/0x60 [ 31.757903] copy_user_test_oob+0xac/0x10f0 [ 31.758455] kunit_try_run_case+0x1b3/0x490 [ 31.759038] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.759755] kthread+0x257/0x310 [ 31.760690] ret_from_fork+0x41/0x80 [ 31.761400] ret_from_fork_asm+0x1a/0x30 [ 31.761892] [ 31.762084] The buggy address belongs to the object at ffff888102933c00 [ 31.762084] which belongs to the cache kmalloc-128 of size 128 [ 31.763654] The buggy address is located 0 bytes inside of [ 31.763654] allocated 120-byte region [ffff888102933c00, ffff888102933c78) [ 31.765186] [ 31.765680] The buggy address belongs to the physical page: [ 31.766443] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102933 [ 31.767622] flags: 0x200000000000000(node=0|zone=2) [ 31.768488] page_type: f5(slab) [ 31.769073] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 31.770048] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 31.770816] page dumped because: kasan: bad access detected [ 31.771736] [ 31.772135] Memory state around the buggy address: [ 31.773312] ffff888102933b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.774235] ffff888102933b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.774714] >ffff888102933c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 31.775768] ^ [ 31.776498] ffff888102933c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.777284] ffff888102933d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.778017] ==================================================================