Unrated severityNVD Advisory· Published Jun 21, 2024· Updated Nov 4, 2025
serial: max3100: Lock port->lock when calling uart_handle_cts_change()
CVE-2024-38634
Description
In the Linux kernel, the following vulnerability has been resolved:
serial: max3100: Lock port->lock when calling uart_handle_cts_change()
uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat:
WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100]
Affected products
95- osv-coords94 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-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-SLE15-SP5-RT_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_2&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
< 5.14.21-150500.55.73.1+ 93 more
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.1
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- (no CPE)range: < 6.4.0-150600.23.14.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 6.4.0-150600.23.14.2.150600.12.4.3
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
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- (no CPE)range: < 5.14.21-150500.55.73.1
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- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 6.4.0-150600.23.14.2.150600.12.4.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
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- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
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- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150600.1.5.1
- (no CPE)range: < 1-150600.13.3.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 6.4.0-18.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-9.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 6.4.0-150600.8.8.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 6.4.0-150600.10.5.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 6.4.0-150600.23.14.2
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9mitre
- git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47mitre
- git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9bamitre
- git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ecmitre
- git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869mitre
- git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458mitre
- git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94mitre
- git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30mitre
News mentions
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