net: ks8851: Fix deadlock with the SPI chip variant
Description
In the Linux kernel, the following vulnerability has been resolved:
net: ks8851: Fix deadlock with the SPI chip variant
When SMP is enabled and spinlocks are actually functional then there is a deadlock with the 'statelock' spinlock between ks8851_start_xmit_spi and ks8851_irq:
watchdog: BUG: soft lockup - CPU#0 stuck for 27s! call trace: queued_spin_lock_slowpath+0x100/0x284 do_raw_spin_lock+0x34/0x44 ks8851_start_xmit_spi+0x30/0xb8 ks8851_start_xmit+0x14/0x20 netdev_start_xmit+0x40/0x6c dev_hard_start_xmit+0x6c/0xbc sch_direct_xmit+0xa4/0x22c __qdisc_run+0x138/0x3fc qdisc_run+0x24/0x3c net_tx_action+0xf8/0x130 handle_softirqs+0x1ac/0x1f0 __do_softirq+0x14/0x20 ____do_softirq+0x10/0x1c call_on_irq_stack+0x3c/0x58 do_softirq_own_stack+0x1c/0x28 __irq_exit_rcu+0x54/0x9c irq_exit_rcu+0x10/0x1c el1_interrupt+0x38/0x50 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x64/0x68 __netif_schedule+0x6c/0x80 netif_tx_wake_queue+0x38/0x48 ks8851_irq+0xb8/0x2c8 irq_thread_fn+0x2c/0x74 irq_thread+0x10c/0x1b0 kthread+0xc8/0xd8 ret_from_fork+0x10/0x20
This issue has not been identified earlier because tests were done on a device with SMP disabled and so spinlocks were actually NOPs.
Now use spin_(un)lock_bh for TX queue related locking to avoid execution of softirq work synchronously that would lead to a deadlock.
Affected products
98- osv-coords97 versionspkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_2&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-MICRO-6-0_Update_2&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 5.14.21-150500.55.80.1+ 96 more
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-150500.11.3.2
- (no CPE)range: < 1-150500.11.3.2
- (no CPE)range: < 1-150600.1.3.2
- (no CPE)range: < 1-150600.13.3.3
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 5.14.21-150500.13.67.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 5.14.21-150500.33.66.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 5.14.21-150500.13.67.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 6.4.0-150600.23.22.1
Patches
40913ec336a6c10fec0cd0e8f80ece0013730a0c69c492f4aVulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
4News mentions
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