CVE-2025-23143: net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.

Q: What is the severity of CVE-2025-23143?

CVE-2025-23143 has a severity rating that indicates a potential for a null pointer dereference leading to system instability.

Q: How do I fix CVE-2025-23143?

To fix CVE-2025-23143, update to the latest version of the Linux kernel that resolves this vulnerability.

Q: What impact does CVE-2025-23143 have on Linux systems?

CVE-2025-23143 may cause crashes or unresponsive behavior in systems running affected versions of the Linux kernel.

Q: Which versions of the Linux kernel are affected by CVE-2025-23143?

CVE-2025-23143 affects Linux kernel versions from 2.6.20 through to 6.14.3, among others specified.

Q: Is CVE-2025-23143 related to any specific Linux distributions?

Yes, CVE-2025-23143 impacts various Linux distributions that utilize affected versions of the Linux kernel.

Published May 1, 2025

Updated

In the Linux kernel, the following vulnerability has been resolved:

net: Fix null-ptr-deref by socklockinitclassandname() and rmmod.

When I ran the repro [0] and waited a few seconds, I observed two LOCKDEP splats: a warning immediately followed by a null-ptr-deref. [1]

Reproduction Steps:

1) Mount CIFS 2) Add an iptables rule to drop incoming FIN packets for CIFS 3) Unmount CIFS 4) Unload the CIFS module 5) Remove the iptables rule

At step 3), the CIFS module calls sockrelease() for the underlying TCP socket, and it returns quickly. However, the socket remains in FINWAIT1 because incoming FIN packets are dropped.

At this point, the module's refcnt is 0 while the socket is still alive, so the following rmmod command succeeds.

# ss -tan State Recv-Q Send-Q Local Address:Port Peer Address:Port FIN-WAIT-1 0 477 10.0.2.15:51062 10.0.0.137:445

# lsmod | grep cifs cifs 1159168 0

This highlights a discrepancy between the lifetime of the CIFS module and the underlying TCP socket. Even after CIFS calls sockrelease() and it returns, the TCP socket does not die immediately in order to close the connection gracefully.

While this is generally fine, it causes an issue with LOCKDEP because CIFS assigns a different lock class to the TCP socket's sk->sklock using socklockinitclassandname().

Once an incoming packet is processed for the socket or a timer fires, sk->sklock is acquired.

Then, LOCKDEP checks the lock context in checkwaitcontext(), where hlockclass() is called to retrieve the lock class. However, since the module has already been unloaded, hlockclass() logs a warning and returns NULL, triggering the null-ptr-deref.

If LOCKDEP is enabled, we must ensure that a module calling socklockinitclassandname() (CIFS, NFS, etc) cannot be unloaded while such a socket is still alive to prevent this issue.

Let's hold the module reference in socklockinitclassandname() and release it when the socket is freed in skprotfree().

Note that socklockinit() clears sk->skowner for svccreatesocket() that calls socklockinitclassandname() for a listening socket, which clones a socket by skclonelock() without GFPZERO.

[0]: CIFSSERVER="10.0.0.137" CIFSPATH="//${CIFSSERVER}/Users/Administrator/Desktop/CIFSTEST" DEV="enp0s3" CRED="/root/WindowsCredential.txt"

MNT=$(mktemp -d /tmp/XXXXXX) mount -t cifs ${CIFSPATH} ${MNT} -o vers=3.0,credentials=${CRED},cache=none,echointerval=1

iptables -A INPUT -s ${CIFSSERVER} -j DROP

for i in $(seq 10); do umount ${MNT} rmmod cifs sleep 1 done

rm -r ${MNT}

iptables -D INPUT -s ${CIFSSERVER} -j DROP

[1]: DEBUGLOCKSWARNON(1) WARNING: CPU: 10 PID: 0 at kernel/locking/lockdep.c:234 hlockclass (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223) Modules linked in: cifsarc4 nlsucs2utils cifsmd4 [last unloaded: cifs] CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Not tainted 6.14.0 #36 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:hlockclass (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223) ... Call Trace: <IRQ> lockacquire (kernel/locking/lockdep.c:4853 kernel/locking/lockdep.c:5178) lockacquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816) rawspinlocknested (kernel/locking/spinlock.c:379) tcpv4rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcpipv4.c:2350) ...

BUG: kernel NULL pointer dereference, address: 00000000000000c4 PF: supervisor read access in kernel mode PF: errorcode(0x0000) - not-present page PGD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Tainted: G W 6.14.0 #36 Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:lockacquire (kernel/ ---truncated---

Affected Software

241 affected componentsFixes available

Linux Linux kernel

Microsoft azl3 kernel 6.6.104.2-4

Patch available

Microsoft cbl2 kernel 5.15.186.1-1

Patch available

Linux Linux kernel>=2.6.20<5.4.300

Linux Linux kernel>=5.5<5.10.245

Linux Linux kernel>=5.11<5.15.194

Linux Linux kernel>=5.16<6.1.153

Linux Linux kernel>=6.2<6.6.107

Linux Linux kernel>=6.7<6.12.24

Linux Linux kernel>=6.13<6.13.12

Linux Linux kernel>=6.14<6.14.3

Linux Linux kernel=6.15-rc1

Debian Debian Linux=11.0

debian/linux<6.1.153-1

6.1.153-1

debian/linux<6.12.25-1

6.12.25-1

debian/linux<6.12.25-1

6.12.25-1

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-azure*

ubuntu/linux-lts-xenial*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-hwe*

ubuntu/linux-azure*

ubuntu/linux-gcp*

ubuntu/linux-hwe*

ubuntu/linux-hwe-edge*

ubuntu/linux-kvm*

ubuntu/linux-oracle*

ubuntu/linux-fips*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4*

ubuntu/linux-azure*

ubuntu/linux-azure-4.15*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4*

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4*

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4*

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4*

ubuntu/linux-kvm*

ubuntu/linux-oem*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4*

ubuntu/linux-raspi-5.4*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.15<5.15.0-1100.107~20.04.2

5.15.0-1100.107~20.04.2

ubuntu/linux-aws-5.8*

ubuntu/linux-azure*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.15<5.15.0-1110.119~20.04.1

5.15.0-1110.119~20.04.1

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-bluefield*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.15<5.15.0-1100.109~20.04.1

5.15.0-1100.109~20.04.1

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-gkeop*

ubuntu/linux-gkeop-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.15<5.15.0-170.180~20.04.3

5.15.0-170.180~20.04.3

ubuntu/linux-hwe-5.8*

ubuntu/linux-ibm*

ubuntu/linux-ibm-5.15<5.15.0-1094.97~20.04.1

5.15.0-1094.97~20.04.1

ubuntu/linux-intel-5.13*

ubuntu/linux-intel-iotg-5.15<5.15.0-1095.101~20.04.1

5.15.0-1095.101~20.04.1

ubuntu/linux-iot*

ubuntu/linux-kvm*

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-170.180~20.04.1

5.15.0-170.180~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1052.52~20.04.2

5.15.0-1052.52~20.04.2

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.15<5.15.0-1097.103~20.04.1

5.15.0-1097.103~20.04.1

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.15<5.15.0-1095.99~20.04.1

5.15.0-1095.99~20.04.1

ubuntu/linux-riscv-5.8*

ubuntu/linux-xilinx-zynqmp*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-170.180

5.15.0-170.180

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1100.107

5.15.0-1100.107

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8<6.8.0-1050.53~22.04.1

6.8.0-1050.53~22.04.1

ubuntu/linux-azure<5.15.0-1109.118

5.15.0-1109.118

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1051.57~22.04.1

6.8.0-1051.57~22.04.1

ubuntu/linux-azure-fde<5.15.0-1109.118.1

5.15.0-1109.118.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-azure-fde-6.8<6.8.0-1058.65~22.04.1

6.8.0-1058.65~22.04.1

ubuntu/linux-gcp<5.15.0-1100.109

5.15.0-1100.109

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1052.55~22.04.1

6.8.0-1052.55~22.04.1

ubuntu/linux-gke<5.15.0-1096.102

5.15.0-1096.102

ubuntu/linux-gkeop<5.15.0-1083.91

5.15.0-1083.91

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-106.106~22.04.1

6.8.0-106.106~22.04.1

ubuntu/linux-ibm<5.15.0-1094.97

5.15.0-1094.97

ubuntu/linux-ibm-6.8<6.8.0-1049.49~22.04.1

6.8.0-1049.49~22.04.1

ubuntu/linux-intel-iot-realtime*

ubuntu/linux-intel-iotg<5.15.0-1095.101

5.15.0-1095.101

ubuntu/linux-kvm<5.15.0-1092.97

5.15.0-1092.97

ubuntu/linux-lowlatency<5.15.0-170.180

5.15.0-170.180

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-106.106.1~22.04.1

6.8.0-106.106.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1095.96

5.15.0-1095.96

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1049.52~22.04.1

6.8.0-1049.52~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1052.52

5.15.0-1052.52

ubuntu/linux-nvidia-tegra-igx<5.15.0-1041.41

5.15.0-1041.41

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1097.103

5.15.0-1097.103

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1047.48~22.04.1

6.8.0-1047.48~22.04.1

ubuntu/linux-raspi<5.15.0-1097.100

5.15.0-1097.100

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-106.106~22.04.1

6.8.0-106.106~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1064.68

5.15.0-1064.68

ubuntu/linux-bluefield<5.15.0-1084.86

5.15.0-1084.86

ubuntu/linux-intel-iot-realtime<5.15.0-1092.94

5.15.0-1092.94

ubuntu/linux-realtime<5.15.0-1099.108

5.15.0-1099.108

ubuntu/linux-realtime-6.8<6.8.1-1045.46~22.04.1

6.8.1-1045.46~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1100.107+fips1

5.15.0-1100.107+fips1

ubuntu/linux-azure-fips<5.15.0-1109.118+fips1

5.15.0-1109.118+fips1

ubuntu/linux-fips<5.15.0-170.180+fips1

5.15.0-170.180+fips1

ubuntu/linux-gcp-fips<5.15.0-1100.109+fips1

5.15.0-1100.109+fips1

ubuntu/linux<6.8.0-106.106

6.8.0-106.106

ubuntu/linux-aws<6.8.0-1050.53

6.8.0-1050.53

ubuntu/linux-azure<6.8.0-1051.57

6.8.0-1051.57

ubuntu/linux-azure-6.11*

ubuntu/linux-azure-fde<6.8.0-1058.65

6.8.0-1058.65

ubuntu/linux-azure-nvidia<6.8.0-1039.42

6.8.0-1039.42

ubuntu/linux-gcp<6.8.0-1052.55

6.8.0-1052.55

ubuntu/linux-gcp-6.11*

ubuntu/linux-gke<6.8.0-1048.53

6.8.0-1048.53

ubuntu/linux-gkeop<6.8.0-1035.38

6.8.0-1035.38

ubuntu/linux-hwe-6.11*

ubuntu/linux-ibm<6.8.0-1049.49

6.8.0-1049.49

ubuntu/linux-intel*

ubuntu/linux-lowlatency<6.8.0-106.106.1

6.8.0-106.106.1

ubuntu/linux-lowlatency-hwe-6.11*

ubuntu/linux-nvidia<6.8.0-1049.52

6.8.0-1049.52

ubuntu/linux-nvidia-6.11*

ubuntu/linux-nvidia-lowlatency<6.8.0-1049.52.1

6.8.0-1049.52.1

ubuntu/linux-nvidia-tegra<6.8.0-1020.20

6.8.0-1020.20

ubuntu/linux-oem-6.11*

ubuntu/linux-oem-6.8*

ubuntu/linux-oracle<6.8.0-1047.48

6.8.0-1047.48

ubuntu/linux-raspi<6.8.0-1050.54

6.8.0-1050.54

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-xilinx<6.8.0-1028.29

6.8.0-1028.29

ubuntu/linux-bluefield<6.8.0-1017.21

6.8.0-1017.21

ubuntu/linux-raspi-realtime<6.8.0-2040.41

6.8.0-2040.41

ubuntu/linux-realtime<6.8.1-1045.46

6.8.1-1045.46

ubuntu/linux-aws-fips<6.8.0-1050.53+fips1

6.8.0-1050.53+fips1

ubuntu/linux-azure-fips<6.8.0-1052.58+fips1

6.8.0-1052.58+fips1

ubuntu/linux-fips<6.8.0-106.106+fips1

6.8.0-106.106+fips1

ubuntu/linux-gcp-fips<6.8.0-1052.55+fips1

6.8.0-1052.55+fips1

ubuntu/linux-azure-fde*

ubuntu/linux-vmware*

linux/kernel>=2.6.20<5.4.300

5.4.300

linux/kernel>=5.5.0<5.10.245

5.10.245

linux/kernel>=5.11.0<5.15.194

5.15.194

linux/kernel>=5.16.0<6.1.153

6.1.153

linux/kernel>=6.2.0<6.6.107

6.6.107

linux/kernel>=6.7.0<6.12.24

6.12.24

linux/kernel>=6.13.0<6.13.12

6.13.12

linux/kernel>=6.14.0<6.14.3

6.14.3

debian/linux

6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade debian/linux to a version that resolves this vulnerability.
Fixed in 6.1.153-1
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Fixed in 6.12.25-1
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Fixed in 5.15.0-1100.107~20.04.2
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Fixed in 5.15.0-1110.119~20.04.1
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Fixed in 5.15.0-1100.109~20.04.1
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Fixed in 5.15.0-170.180~20.04.3
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Fixed in 5.15.0-1094.97~20.04.1
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Fixed in 5.15.0-1095.101~20.04.1
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Fixed in 5.15.0-170.180~20.04.1
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Fixed in 5.15.0-1052.52~20.04.2
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Fixed in 5.15.0-1097.103~20.04.1
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Fixed in 5.15.0-1095.99~20.04.1
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Fixed in 5.15.0-170.180
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Fixed in 5.15.0-1100.107
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Fixed in 6.8.0-1050.53~22.04.1
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Fixed in 5.15.0-1109.118
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Fixed in 6.8.0-1051.57~22.04.1
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Fixed in 5.15.0-1109.118.1
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Fixed in 6.8.0-1058.65~22.04.1
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Fixed in 5.15.0-1100.109
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Fixed in 6.8.0-1052.55~22.04.1
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Fixed in 5.15.0-1096.102
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Fixed in 5.15.0-1083.91
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Fixed in 6.8.0-106.106~22.04.1
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Fixed in 5.15.0-1094.97
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Fixed in 6.8.0-1049.49~22.04.1
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Fixed in 5.15.0-1095.101
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Fixed in 5.15.0-1092.97
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Fixed in 5.15.0-170.180
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Fixed in 6.8.0-106.106.1~22.04.1
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Fixed in 5.15.0-1095.96
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Fixed in 6.8.0-1049.52~22.04.1
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Fixed in 5.15.0-1052.52
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Fixed in 5.15.0-1041.41
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Fixed in 5.15.0-1097.103
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Fixed in 6.8.0-1047.48~22.04.1
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Fixed in 5.15.0-1097.100
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Fixed in 6.8.0-106.106~22.04.1
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Fixed in 5.15.0-1064.68
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Fixed in 5.15.0-1084.86
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Fixed in 5.15.0-1092.94
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Fixed in 5.15.0-1099.108
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Fixed in 6.8.1-1045.46~22.04.1
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Fixed in 5.15.0-1100.107+fips1
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Fixed in 5.15.0-1109.118+fips1
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Fixed in 5.15.0-170.180+fips1
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Fixed in 5.15.0-1100.109+fips1
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Fixed in 6.8.0-106.106
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Fixed in 6.8.0-1050.53
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Fixed in 6.8.0-1051.57
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Fixed in 6.8.0-1058.65
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Fixed in 6.8.0-1039.42
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Fixed in 6.8.0-1052.55
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Fixed in 6.8.0-1048.53
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Fixed in 6.8.0-1035.38
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Fixed in 6.8.0-1049.49
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Fixed in 6.8.0-106.106.1
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Fixed in 6.8.0-1049.52
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Fixed in 6.8.0-1049.52.1
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Fixed in 6.8.0-1020.20
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Fixed in 6.8.0-1047.48
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Fixed in 6.8.0-1050.54
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Fixed in 6.8.0-1028.29
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Fixed in 6.8.0-1017.21
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Fixed in 6.8.0-2040.41
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Fixed in 6.8.1-1045.46
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Fixed in 6.8.0-1050.53+fips1
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Fixed in 6.8.0-1052.58+fips1
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Fixed in 6.8.0-106.106+fips1
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Fixed in 6.8.0-1052.55+fips1
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Fixed in 5.4.300
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Fixed in 5.10.245
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Fixed in 5.15.194
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Fixed in 6.1.153
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Fixed in 6.6.107
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Fixed in 6.12.24
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Fixed in 6.13.12
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Fixed in 6.14.3
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Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.4-1
Compensating control
Prevent unloading modules that call sock_lock_init_class_and_name() while sockets they created are still alive by holding a module reference in sock_lock_init_class_and_name() and releasing it when the socket is freed in sk_prot_free().

Event History

May 1, 2025

CVE Published

via MITRE·12:55 PM

Data Sourced

via MITRE·12:55 PM

Description

Data Sourced

via OSV·12:55 PM

DescriptionAffected Software

Data Sourced

via NVD·01:15 PM

RemedyDescriptionSeverityWeaknessAffected Software

Nov 7, 2025

Data Sourced

via Microsoft·09:01 AM

DescriptionSeverityWeakness

Data Sourced

via Microsoft·09:01 AM

Affected Software

Nov 11, 2026

Data Sourced

via OSV·09:38 AM

Severity

Parent advisories

This vulnerability appears in the following advisories.

DSA-6009

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What is the severity of CVE-2025-23143?

CVE-2025-23143 has a severity rating that indicates a potential for a null pointer dereference leading to system instability.

How do I fix CVE-2025-23143?

To fix CVE-2025-23143, update to the latest version of the Linux kernel that resolves this vulnerability.

What impact does CVE-2025-23143 have on Linux systems?

CVE-2025-23143 may cause crashes or unresponsive behavior in systems running affected versions of the Linux kernel.

Which versions of the Linux kernel are affected by CVE-2025-23143?

CVE-2025-23143 affects Linux kernel versions from 2.6.20 through to 6.14.3, among others specified.

Is CVE-2025-23143 related to any specific Linux distributions?

Yes, CVE-2025-23143 impacts various Linux distributions that utilize affected versions of the Linux kernel.

CVE-2025-23143: net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2025-23143?

How do I fix CVE-2025-23143?

What impact does CVE-2025-23143 have on Linux systems?

Which versions of the Linux kernel are affected by CVE-2025-23143?

Is CVE-2025-23143 related to any specific Linux distributions?

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