Date
July 10, 2025, 9:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 63.151789] ================================================================== [ 63.151862] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 63.151862] [ 63.151956] Use-after-free read at 0x00000000c6d2f91f (in kfence-#187): [ 63.152011] test_krealloc+0x51c/0x830 [ 63.152059] kunit_try_run_case+0x170/0x3f0 [ 63.152107] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.152172] kthread+0x328/0x630 [ 63.152212] ret_from_fork+0x10/0x20 [ 63.152253] [ 63.152278] kfence-#187: 0x00000000c6d2f91f-0x0000000099e89701, size=32, cache=kmalloc-32 [ 63.152278] [ 63.152334] allocated by task 368 on cpu 0 at 63.151092s (0.001239s ago): [ 63.152404] test_alloc+0x29c/0x628 [ 63.152446] test_krealloc+0xc0/0x830 [ 63.152489] kunit_try_run_case+0x170/0x3f0 [ 63.152530] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.152578] kthread+0x328/0x630 [ 63.152615] ret_from_fork+0x10/0x20 [ 63.152653] [ 63.152678] freed by task 368 on cpu 0 at 63.151379s (0.001296s ago): [ 63.152741] krealloc_noprof+0x148/0x360 [ 63.152783] test_krealloc+0x1dc/0x830 [ 63.152824] kunit_try_run_case+0x170/0x3f0 [ 63.152865] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 63.152911] kthread+0x328/0x630 [ 63.152947] ret_from_fork+0x10/0x20 [ 63.152989] [ 63.153036] CPU: 0 UID: 0 PID: 368 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT [ 63.153116] Tainted: [B]=BAD_PAGE, [N]=TEST [ 63.153156] Hardware name: linux,dummy-virt (DT) [ 63.153191] ==================================================================
[ 63.005685] ================================================================== [ 63.006046] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 63.006046] [ 63.006340] Use-after-free read at 0x(____ptrval____) (in kfence-#173): [ 63.006578] test_krealloc+0x6fc/0xbe0 [ 63.006738] kunit_try_run_case+0x1a5/0x480 [ 63.007027] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.007232] kthread+0x337/0x6f0 [ 63.007435] ret_from_fork+0x116/0x1d0 [ 63.007686] ret_from_fork_asm+0x1a/0x30 [ 63.007907] [ 63.008003] kfence-#173: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 63.008003] [ 63.008408] allocated by task 385 on cpu 0 at 63.005058s (0.003336s ago): [ 63.008745] test_alloc+0x364/0x10f0 [ 63.008953] test_krealloc+0xad/0xbe0 [ 63.009129] kunit_try_run_case+0x1a5/0x480 [ 63.009332] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.009619] kthread+0x337/0x6f0 [ 63.009776] ret_from_fork+0x116/0x1d0 [ 63.009956] ret_from_fork_asm+0x1a/0x30 [ 63.010164] [ 63.010261] freed by task 385 on cpu 0 at 63.005286s (0.004972s ago): [ 63.010526] krealloc_noprof+0x108/0x340 [ 63.010666] test_krealloc+0x226/0xbe0 [ 63.010804] kunit_try_run_case+0x1a5/0x480 [ 63.010991] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.011282] kthread+0x337/0x6f0 [ 63.011440] ret_from_fork+0x116/0x1d0 [ 63.011571] ret_from_fork_asm+0x1a/0x30 [ 63.011887] [ 63.012047] CPU: 0 UID: 0 PID: 385 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) [ 63.012904] Tainted: [B]=BAD_PAGE, [N]=TEST [ 63.013296] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 63.013919] ==================================================================