Date
June 19, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 62.770983] ================================================================== [ 62.771103] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 62.771103] [ 62.771220] Use-after-free read at 0x000000004809c4a0 (in kfence-#175): [ 62.771282] test_krealloc+0x51c/0x830 [ 62.771337] kunit_try_run_case+0x170/0x3f0 [ 62.771387] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 62.771438] kthread+0x328/0x630 [ 62.771481] ret_from_fork+0x10/0x20 [ 62.771525] [ 62.771553] kfence-#175: 0x000000004809c4a0-0x00000000edeffef3, size=32, cache=kmalloc-32 [ 62.771553] [ 62.771616] allocated by task 348 on cpu 0 at 62.770095s (0.001516s ago): [ 62.771696] test_alloc+0x29c/0x628 [ 62.771742] test_krealloc+0xc0/0x830 [ 62.771788] kunit_try_run_case+0x170/0x3f0 [ 62.771832] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 62.771893] kthread+0x328/0x630 [ 62.771937] ret_from_fork+0x10/0x20 [ 62.771980] [ 62.772009] freed by task 348 on cpu 0 at 62.770451s (0.001554s ago): [ 62.772078] krealloc_noprof+0x148/0x360 [ 62.772122] test_krealloc+0x1dc/0x830 [ 62.772166] kunit_try_run_case+0x170/0x3f0 [ 62.772209] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 62.772256] kthread+0x328/0x630 [ 62.772294] ret_from_fork+0x10/0x20 [ 62.772338] [ 62.772390] CPU: 0 UID: 0 PID: 348 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT [ 62.772480] Tainted: [B]=BAD_PAGE, [N]=TEST [ 62.772515] Hardware name: linux,dummy-virt (DT) [ 62.772557] ==================================================================
[ 63.413837] ================================================================== [ 63.414364] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 63.414364] [ 63.414807] Use-after-free read at 0x(____ptrval____) (in kfence-#179): [ 63.415089] test_krealloc+0x6fc/0xbe0 [ 63.415275] kunit_try_run_case+0x1a5/0x480 [ 63.415671] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.416114] kthread+0x337/0x6f0 [ 63.416439] ret_from_fork+0x116/0x1d0 [ 63.416674] ret_from_fork_asm+0x1a/0x30 [ 63.417013] [ 63.417162] kfence-#179: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 63.417162] [ 63.417529] allocated by task 366 on cpu 1 at 63.412766s (0.004758s ago): [ 63.418149] test_alloc+0x364/0x10f0 [ 63.418482] test_krealloc+0xad/0xbe0 [ 63.418761] kunit_try_run_case+0x1a5/0x480 [ 63.419152] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.419403] kthread+0x337/0x6f0 [ 63.419581] ret_from_fork+0x116/0x1d0 [ 63.419878] ret_from_fork_asm+0x1a/0x30 [ 63.420221] [ 63.420393] freed by task 366 on cpu 1 at 63.413254s (0.007135s ago): [ 63.420814] krealloc_noprof+0x108/0x340 [ 63.421047] test_krealloc+0x226/0xbe0 [ 63.421374] kunit_try_run_case+0x1a5/0x480 [ 63.421590] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 63.422055] kthread+0x337/0x6f0 [ 63.422242] ret_from_fork+0x116/0x1d0 [ 63.422527] ret_from_fork_asm+0x1a/0x30 [ 63.422727] [ 63.422905] CPU: 1 UID: 0 PID: 366 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT(voluntary) [ 63.423872] Tainted: [B]=BAD_PAGE, [N]=TEST [ 63.424198] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 63.424612] ==================================================================