{"id":"DEBIAN-CVE-2023-54246","details":"In the Linux kernel, the following vulnerability has been resolved:  rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()  The rcuscale.holdoff module parameter can be used to delay the start of rcu_scale_writer() kthread.  However, the hung-task timeout will trigger when the timeout specified by rcuscale.holdoff is greater than hung_task_timeout_secs:  runqemu kvm nographic slirp qemuparams=\"-smp 4 -m 2048M\" bootparams=\"rcuscale.shutdown=0 rcuscale.holdoff=300\"  [  247.071753] INFO: task rcu_scale_write:59 blocked for more than 122 seconds. [  247.072529]       Not tainted 6.4.0-rc1-00134-gb9ed6de8d4ff #7 [  247.073400] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message. [  247.074331] task:rcu_scale_write state:D stack:30144 pid:59    ppid:2      flags:0x00004000 [  247.075346] Call Trace: [  247.075660]  \u003cTASK\u003e [  247.075965]  __schedule+0x635/0x1280 [  247.076448]  ? __pfx___schedule+0x10/0x10 [  247.076967]  ? schedule_timeout+0x2dc/0x4d0 [  247.077471]  ? __pfx_lock_release+0x10/0x10 [  247.078018]  ? enqueue_timer+0xe2/0x220 [  247.078522]  schedule+0x84/0x120 [  247.078957]  schedule_timeout+0x2e1/0x4d0 [  247.079447]  ? __pfx_schedule_timeout+0x10/0x10 [  247.080032]  ? __pfx_rcu_scale_writer+0x10/0x10 [  247.080591]  ? __pfx_process_timeout+0x10/0x10 [  247.081163]  ? __pfx_sched_set_fifo_low+0x10/0x10 [  247.081760]  ? __pfx_rcu_scale_writer+0x10/0x10 [  247.082287]  rcu_scale_writer+0x6b1/0x7f0 [  247.082773]  ? mark_held_locks+0x29/0xa0 [  247.083252]  ? __pfx_rcu_scale_writer+0x10/0x10 [  247.083865]  ? __pfx_rcu_scale_writer+0x10/0x10 [  247.084412]  kthread+0x179/0x1c0 [  247.084759]  ? __pfx_kthread+0x10/0x10 [  247.085098]  ret_from_fork+0x2c/0x50 [  247.085433]  \u003c/TASK\u003e  This commit therefore replaces schedule_timeout_uninterruptible() with schedule_timeout_idle().","modified":"2026-09-15T08:47:28.291172646Z","published":"2025-12-30T13:16:13.210Z","upstream":["CVE-2023-54246"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-54246"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.55-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54246.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54246.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54246.json"}}],"schema_version":"1.9.0"}