cbcvebase.
CVE-2024-50249
published 2024-11-09

CVE-2024-50249: In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Make rmw_lock a raw_spin_lock The following BUG was triggered: [ BUG: Invalid…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.4th percentile
In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Make rmw_lock a raw_spin_lock The following BUG was triggered: [ BUG: Invalid wait context ] 6.12.0-rc2-XXX #406 Not tainted kworker/1:1/62 is trying to lock: ffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370 other info that might help us debug this: context-{5:5} 2 locks held by kworker/1:1/62: #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50 #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280 stack backtrace: CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406 Workqueue: 0x0 (events) Call trace: dump_backtrace+0xa4/0x130 show_stack+0x20/0x38 dump_stack_lvl+0x90/0xd0 dump_stack+0x18/0x28 __lock_acquire+0x480/0x1ad8 lock_acquire+0x114/0x310 _raw_spin_lock+0x50/0x70 cpc_write+0xcc/0x370 cppc_set_perf+0xa0/0x3a8 cppc_cpufreq_fast_switch+0x40/0xc0 cpufreq_driver_fast_switch+0x4c/0x218 sugov_update_shared+0x234/0x280 update_load_avg+0x6ec/0x7b8 dequeue_entities+0x108/0x830 dequeue_task_fair+0x58/0x408 __schedule+0x4f0/0x1070 schedule+0x54/0x130 worker_thread+0xc0/0x2e8 kthread+0x130/0x148 ret_from_fork+0x10/0x20 sugov_update_shared() locks a raw_spinlock while cpc_write() locks a spinlock. To have a correct wait-type order, update rmw_lock to a raw spinlock and ensure that interrupts will be disabled on the CPU holding it. [ rjw: Changelog edits ]

Affected

28 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
debianlinux-6.1< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
linuxlinux
linuxlinux>= 20cde05aa8bcd7a5ff36a609d813189b7cdbe692 < 43b1df48d1e7000a214acd1a81b8012ca8a929c843b1df48d1e7000a214acd1a81b8012ca8a929c8
linuxlinux>= 5.15.168 < 5.15.1715.15.171
linuxlinux>= 6.1.113 < 6.1.1166.1.116
linuxlinux>= 6.10.13 < 6.116.11
linuxlinux>= 6.11.2 < 6.11.76.11.7
linuxlinux>= 6.6.54 < 6.6.606.6.60
linuxlinux>= 60949b7b805424f21326b450ca4f1806c06d982e < 1c10941e34c5fdc0357e46a25bd130d9cf40b9251c10941e34c5fdc0357e46a25bd130d9cf40b925
linuxlinux>= 8ad28208be7bbe748e90442c45963ddbef0fd1e2 < 0eb2b767c42fac61ab23c4063eb456baa4c2c2620eb2b767c42fac61ab23c4063eb456baa4c2c262
linuxlinux>= 94e8c988468dafde1d2bfe0532a60a3117f6394b < c46d6b02588000c27b7b869388c2c0278bd0d173c46d6b02588000c27b7b869388c2c0278bd0d173
linuxlinux>= f812ca13a0d3e3aa418da36b66ca40df0d6f9e60 < 23039b4aaf1e82e0feea1060834d4ec34262e45323039b4aaf1e82e0feea1060834d4ec34262e453
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.119-16.1.119-1
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.15.168 < 5.15.1715.15.171
linuxlinux_kernel>= 6.1.113 < 6.1.1166.1.116
linuxlinux_kernel>= 6.10.13 < 6.116.11
linuxlinux_kernel>= 6.11.2 < 6.11.76.11.7
linuxlinux_kernel>= 6.6.54 < 6.6.606.6.60

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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