Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.293683] ================================================================== [ 21.293969] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.293969] [ 21.294212] Use-after-free read at 0x000000007e6fe073 (in kfence-#93): [ 21.294309] test_use_after_free_read+0x114/0x248 [ 21.294362] kunit_try_run_case+0x170/0x3f0 [ 21.294464] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.294551] kthread+0x328/0x630 [ 21.294616] ret_from_fork+0x10/0x20 [ 21.294659] [ 21.294683] kfence-#93: 0x000000007e6fe073-0x000000001e6f4785, size=32, cache=kmalloc-32 [ 21.294683] [ 21.294735] allocated by task 295 on cpu 0 at 21.293213s (0.001519s ago): [ 21.295036] test_alloc+0x29c/0x628 [ 21.295092] test_use_after_free_read+0xd0/0x248 [ 21.295147] kunit_try_run_case+0x170/0x3f0 [ 21.295335] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.295380] kthread+0x328/0x630 [ 21.295414] ret_from_fork+0x10/0x20 [ 21.295651] [ 21.296387] freed by task 295 on cpu 0 at 21.293355s (0.002643s ago): [ 21.296750] test_use_after_free_read+0x1c0/0x248 [ 21.296797] kunit_try_run_case+0x170/0x3f0 [ 21.296860] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.297211] kthread+0x328/0x630 [ 21.297573] ret_from_fork+0x10/0x20 [ 21.297714] [ 21.297929] CPU: 0 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.298099] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.298199] Hardware name: linux,dummy-virt (DT) [ 21.298234] ================================================================== [ 21.401281] ================================================================== [ 21.401361] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.401361] [ 21.401447] Use-after-free read at 0x00000000ea0486a0 (in kfence-#94): [ 21.401501] test_use_after_free_read+0x114/0x248 [ 21.401560] kunit_try_run_case+0x170/0x3f0 [ 21.401603] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.401647] kthread+0x328/0x630 [ 21.401688] ret_from_fork+0x10/0x20 [ 21.401729] [ 21.401754] kfence-#94: 0x00000000ea0486a0-0x000000008a6dc20d, size=32, cache=test [ 21.401754] [ 21.403166] allocated by task 297 on cpu 0 at 21.400454s (0.002703s ago): [ 21.403255] test_alloc+0x230/0x628 [ 21.403298] test_use_after_free_read+0xd0/0x248 [ 21.403390] kunit_try_run_case+0x170/0x3f0 [ 21.403571] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.404170] kthread+0x328/0x630 [ 21.404275] ret_from_fork+0x10/0x20 [ 21.404737] [ 21.404813] freed by task 297 on cpu 0 at 21.400937s (0.003835s ago): [ 21.405240] test_use_after_free_read+0xf0/0x248 [ 21.405291] kunit_try_run_case+0x170/0x3f0 [ 21.405332] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.405376] kthread+0x328/0x630 [ 21.405412] ret_from_fork+0x10/0x20 [ 21.405840] [ 21.406745] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.407011] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.407436] Hardware name: linux,dummy-virt (DT) [ 21.407567] ==================================================================
[ 18.011520] ================================================================== [ 18.011964] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.011964] [ 18.012476] Use-after-free read at 0x(____ptrval____) (in kfence-#72): [ 18.012735] test_use_after_free_read+0x129/0x270 [ 18.012919] kunit_try_run_case+0x1a5/0x480 [ 18.013127] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.013500] kthread+0x337/0x6f0 [ 18.013678] ret_from_fork+0x116/0x1d0 [ 18.013897] ret_from_fork_asm+0x1a/0x30 [ 18.014131] [ 18.014208] kfence-#72: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 18.014208] [ 18.014602] allocated by task 312 on cpu 0 at 18.011304s (0.003296s ago): [ 18.014952] test_alloc+0x364/0x10f0 [ 18.015178] test_use_after_free_read+0xdc/0x270 [ 18.015331] kunit_try_run_case+0x1a5/0x480 [ 18.015525] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.015818] kthread+0x337/0x6f0 [ 18.016019] ret_from_fork+0x116/0x1d0 [ 18.016299] ret_from_fork_asm+0x1a/0x30 [ 18.016501] [ 18.016573] freed by task 312 on cpu 0 at 18.011361s (0.005210s ago): [ 18.016870] test_use_after_free_read+0x1e7/0x270 [ 18.017079] kunit_try_run_case+0x1a5/0x480 [ 18.017341] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.017538] kthread+0x337/0x6f0 [ 18.017741] ret_from_fork+0x116/0x1d0 [ 18.017954] ret_from_fork_asm+0x1a/0x30 [ 18.018148] [ 18.018246] CPU: 0 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 18.018771] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.018976] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.019361] ================================================================== [ 18.115467] ================================================================== [ 18.115915] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.115915] [ 18.116423] Use-after-free read at 0x(____ptrval____) (in kfence-#73): [ 18.116656] test_use_after_free_read+0x129/0x270 [ 18.116833] kunit_try_run_case+0x1a5/0x480 [ 18.117061] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.117346] kthread+0x337/0x6f0 [ 18.117525] ret_from_fork+0x116/0x1d0 [ 18.117662] ret_from_fork_asm+0x1a/0x30 [ 18.117891] [ 18.117987] kfence-#73: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 18.117987] [ 18.118442] allocated by task 314 on cpu 1 at 18.115327s (0.003113s ago): [ 18.118672] test_alloc+0x2a6/0x10f0 [ 18.118868] test_use_after_free_read+0xdc/0x270 [ 18.119121] kunit_try_run_case+0x1a5/0x480 [ 18.119454] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.119691] kthread+0x337/0x6f0 [ 18.119860] ret_from_fork+0x116/0x1d0 [ 18.120075] ret_from_fork_asm+0x1a/0x30 [ 18.120252] [ 18.120329] freed by task 314 on cpu 1 at 18.115387s (0.004939s ago): [ 18.120574] test_use_after_free_read+0xfb/0x270 [ 18.120838] kunit_try_run_case+0x1a5/0x480 [ 18.121044] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.121381] kthread+0x337/0x6f0 [ 18.121504] ret_from_fork+0x116/0x1d0 [ 18.121695] ret_from_fork_asm+0x1a/0x30 [ 18.121903] [ 18.122029] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 18.122527] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.122667] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.123044] ==================================================================