🛡️ CVE-2024-47692 on Ubuntu — linux

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in /var/lib/nfs/nfsdcld/, it may result in namelen being 0, which will cause memdup_user() to return ZERO_SIZE_PTR. When we access the name.data that has been assigned the value of ZERO_SIZE_PTR in nfs4_client_to_reclaim(), null pointer dereference is triggered. [ T1205] ================================================================== [ T1205] BUG: KASAN: null-ptr-deref in nfs4_client_to_reclaim+0xe9/0x260 [ T1205] Read of size 1 at addr 0000000000000010 by task nfsdcld/1205 [ T1205] [ T1205] CPU: 11 PID: 1205 Comm: nfsdcld Not tainted 5.10.0-00003-g2c1423731b8d #406 [ T1205] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 [ T1205] Call Trace: [ T1205] dump_stack+0x9a/0xd0 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] __kasan_report.cold+0x34/0x84 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] kasan_report+0x3a/0x50 [ T1205] nfs4_client_to_reclaim+0xe9/0x260 [ T1205] ? nfsd4_release_lockowner+0x410/0x410 [ T1205] cld_pipe_downcall+0x5ca/0x760 [ T1205] ? nfsd4_cld_tracking_exit+0x1d0/0x1d0 [ T1205] ? down_write_killable_nested+0x170/0x170 [ T1205] ? avc_policy_seqno+0x28/0x40 [ T1205] ? selinux_file_permission+0x1b4/0x1e0 [ T1205] rpc_pipe_write+0x84/0xb0 [ T1205] vfs_write+0x143/0x520 [ T1205] ksys_write+0xc9/0x170 [ T1205] ? __ia32_sys_read+0x50/0x50 [ T1205] ? ktime_get_coarse_real_ts64+0xfe/0x110 [ T1205] ? ktime_get_coarse_real_ts64+0xa2/0x110 [ T1205] do_syscall_64+0x33/0x40 [ T1205] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ T1205] RIP: 0033:0x7fdbdb761bc7 [ T1205] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 514 [ T1205] RSP: 002b:00007fff8c4b7248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ T1205] RAX: ffffffffffffffda RBX: 000000000000042b RCX: 00007fdbdb761bc7 [ T1205] RDX: 000000000000042b RSI: 00007fff8c4b75f0 RDI: 0000000000000008 [ T1205] RBP: 00007fdbdb761bb0 R08: 0000000000000000 R09: 0000000000000001 [ T1205] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000042b [ T1205] R13: 0000000000000008 R14: 00007fff8c4b75f0 R15: 0000000000000000 [ T1205] ================================================================== Fix it by checking namelen.

Distribution advisory

This page covers CVE-2024-47692 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-54.56; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack vector: Network — reachable from anywhere that can route to the service.
Attack complexity: Low — the attack works reliably, with no preparation.
Privileges required: Low — an ordinary user account is enough.
User interaction: None — nobody has to be tricked into anything.
Scope: Unchanged — the damage stays inside the vulnerable component.
Confidentiality impact: None.
Integrity impact: None.
Availability impact: High — total loss, or loss the attacker controls.

Affected software

UBUNTU-CVE-2024-47692 is recorded against 130 packages.

linux (fixed in 6.8.0-54.56)
linux-allwinner-5.19
linux-aws (fixed in 6.8.0-1023.25)
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 (fixed in 5.15.0-1073.79~20.04.1)
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 (fixed in 5.4.0-1142.152~18.04.1)
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 (fixed in 6.8.0-1023.25~22.04.1)
linux-aws-fips (fixed in 5.15.0-1073.79+fips1)
linux-azure (fixed in 6.8.0-1025.30)
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 (fixed in 5.15.0-1078.87~20.04.1)
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 (fixed in 5.4.0-1145.152~18.04.1)
linux-azure-5.8
linux-azure-6.11 (fixed in 6.11.0-1012.12~24.04.1)

Show the remaining 106 packages

linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 (fixed in 6.8.0-1025.30~22.04.1)
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips (fixed in 5.15.0-1078.87+fips1)
linux-azure-nvidia (fixed in 6.8.0-1014.15)
linux-bluefield
linux-fips (fixed in 6.8.0-78.78+fips1)
linux-gcp (fixed in 6.8.0-1024.26)
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 (fixed in 5.15.0-1072.80~20.04.1)
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 (fixed in 5.4.0-1143.152~18.04.1)
linux-gcp-5.8
linux-gcp-6.11 (fixed in 6.11.0-1011.11~24.04.1)
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 (fixed in 6.8.0-1024.26~22.04.1)
linux-gcp-fips (fixed in 5.15.0-1072.80+fips1)
linux-gke (fixed in 6.8.0-1019.23)
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop (fixed in 6.8.0-1006.8)
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
linux-hwe-5.19
linux-hwe-5.4 (fixed in 5.4.0-208.228~18.04.1)
linux-hwe-5.8
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 (fixed in 6.8.0-57.59~22.04.1)
linux-hwe-edge
linux-ibm (fixed in 6.8.0-1022.22)
linux-ibm-5.15 (fixed in 5.15.0-1066.69~20.04.1)
linux-ibm-5.4 (fixed in 5.4.0-1086.91~18.04.1)
linux-ibm-6.8 (fixed in 6.8.0-1023.23~22.04.1)
linux-intel-5.13
linux-intel-iot-realtime (fixed in 5.15.0-1066.68)
linux-intel-iotg (fixed in 5.15.0-1071.77)
linux-intel-iotg-5.15 (fixed in 5.15.0-1071.77~20.04.1)
linux-iot (fixed in 5.4.0-1048.51)
linux-kvm (fixed in 5.15.0-1070.75)
linux-lowlatency (fixed in 6.8.0-54.56.1)
linux-lowlatency-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 (fixed in 6.8.0-54.56.1~22.04.1)
linux-nvidia (fixed in 6.8.0-1022.25)
linux-nvidia-6.11 (fixed in 6.11.0-1007.7)
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 (fixed in 6.8.0-1022.25~22.04.2)
linux-nvidia-lowlatency (fixed in 6.8.0-1022.25.2)
linux-nvidia-tegra (fixed in 5.15.0-1032.32)
linux-nvidia-tegra-5.15 (fixed in 5.15.0-1032.32~20.04.1)
linux-nvidia-tegra-igx (fixed in 5.15.0-1020.20)
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11 (fixed in 6.11.0-1015.15)
linux-oem-6.5
linux-oem-6.8 (fixed in 6.8.0-1024.24)
linux-oracle (fixed in 6.8.0-1020.21)
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 (fixed in 5.15.0-1071.77~20.04.1)
linux-oracle-5.3
linux-oracle-5.4 (fixed in 5.4.0-1138.147~18.04.1)
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 (fixed in 6.8.0-1020.21~22.04.1)
linux-raspi (fixed in 6.8.0-1019.23)
linux-raspi-5.4 (fixed in 5.4.0-1129.142~18.04.1)
linux-raspi-realtime (fixed in 6.8.0-2018.19)
linux-raspi2
linux-realtime (fixed in 6.8.1-1016.17)
linux-realtime-6.8 (fixed in 6.8.1-1016.17~22.04.1)
linux-riscv (fixed in 6.8.0-53.55.1)
linux-riscv-5.11
linux-riscv-5.15 (fixed in 5.15.0-1069.73~20.04.1)
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 (fixed in 6.8.0-53.55.1~22.04.1)
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx (fixed in 6.8.0-1017.18)
linux-xilinx-zynqmp (fixed in 5.15.0-1039.43)

Timeline and source

Published on 21 October 2024 and last revised on 17 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

Other advisories for this package

linux has other advisories on record. If you are patching this one, these are worth checking on the same host:

DEBIAN-CVE-2022-4994 (published 30 Jul 2026)
CVE-2026-35233 (4.4 Medium, published 1 May 2026)
CVE-2026-21996 (3.3 Low, published 1 May 2026)
CVE-2026-21991 (5.5 Medium, published 16 Mar 2026)
CGA-w6xv-3fg4-grm5 (published 29 Jan 2026)
CGA-mcwh-q4vm-9f29 (published 29 Jan 2026)
CGA-m3jq-vcq5-mqrx (published 7 Jan 2026)
CGA-6xjj-65cr-mc7v (published 7 Jan 2026)

CVE-2024-47692 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft — BELL-CVE-2024-47692 Base record — CVE-2024-47692 Debian — DEBIAN-CVE-2024-47692

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2024-10-21

Updated 2026-08-20

Modified 2026-08-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.8.0-54.56
linux-allwinner-5.19	—	—
linux-aws	—	6.8.0-1023.25
linux-aws-5.0	—	—
linux-aws-5.11	—	—
linux-aws-5.13	—	—
linux-aws-5.15	—	5.15.0-1073.79~20.04.1
linux-aws-5.19	—	—
linux-aws-5.3	—	—
linux-aws-5.4	—	5.4.0-1142.152~18.04.1
linux-aws-5.8	—	—
linux-aws-6.2	—	—
linux-aws-6.5	—	—
linux-aws-6.8	—	6.8.0-1023.25~22.04.1
linux-aws-fips	—	5.15.0-1073.79+fips1
linux-azure	—	6.8.0-1025.30
linux-azure-5.11	—	—
linux-azure-5.13	—	—
linux-azure-5.15	—	5.15.0-1078.87~20.04.1
linux-azure-5.19	—	—
linux-azure-5.3	—	—
linux-azure-5.4	—	5.4.0-1145.152~18.04.1
linux-azure-5.8	—	—
linux-azure-6.11	—	6.11.0-1012.12~24.04.1
linux-azure-6.2	—	—
linux-azure-6.5	—	—
linux-azure-6.8	—	6.8.0-1025.30~22.04.1
linux-azure-edge	—	—
linux-azure-fde	—	—
linux-azure-fde-5.19	—	—
linux-azure-fde-6.2	—	—
linux-azure-fips	—	5.15.0-1078.87+fips1
linux-azure-nvidia	—	6.8.0-1014.15
linux-bluefield	—	—
linux-fips	—	6.8.0-78.78+fips1
linux-gcp	—	6.8.0-1024.26
linux-gcp-5.11	—	—
linux-gcp-5.13	—	—
linux-gcp-5.15	—	5.15.0-1072.80~20.04.1
linux-gcp-5.19	—	—
linux-gcp-5.3	—	—
linux-gcp-5.4	—	5.4.0-1143.152~18.04.1
linux-gcp-5.8	—	—
linux-gcp-6.11	—	6.11.0-1011.11~24.04.1
linux-gcp-6.2	—	—
linux-gcp-6.5	—	—
linux-gcp-6.8	—	6.8.0-1024.26~22.04.1
linux-gcp-fips	—	5.15.0-1072.80+fips1
linux-gke	—	6.8.0-1019.23
linux-gke-4.15	—	—
linux-gke-5.15	—	—
linux-gke-5.4	—	—
linux-gkeop	—	6.8.0-1006.8
linux-gkeop-5.15	—	—
linux-gkeop-5.4	—	—
linux-hwe	—	—
linux-hwe-5.11	—	—
linux-hwe-5.13	—	—
linux-hwe-5.15	—	5.15.0-127.137~20.04.1
linux-hwe-5.19	—	—
linux-hwe-5.4	—	5.4.0-208.228~18.04.1
linux-hwe-5.8	—	—
linux-hwe-6.2	—	—
linux-hwe-6.5	—	—
linux-hwe-6.8	—	6.8.0-57.59~22.04.1
linux-hwe-edge	—	—
linux-ibm	—	6.8.0-1022.22
linux-ibm-5.15	—	5.15.0-1066.69~20.04.1
linux-ibm-5.4	—	5.4.0-1086.91~18.04.1
linux-ibm-6.8	—	6.8.0-1023.23~22.04.1
linux-intel-5.13	—	—
linux-intel-iot-realtime	—	5.15.0-1066.68
linux-intel-iotg	—	5.15.0-1071.77
linux-intel-iotg-5.15	—	5.15.0-1071.77~20.04.1
linux-iot	—	5.4.0-1048.51
linux-kvm	—	5.15.0-1070.75
linux-lowlatency	—	6.8.0-54.56.1
linux-lowlatency-hwe-5.15	—	5.15.0-127.137~20.04.1
linux-lowlatency-hwe-5.19	—	—
linux-lowlatency-hwe-6.2	—	—
linux-lowlatency-hwe-6.5	—	—
linux-lowlatency-hwe-6.8	—	6.8.0-54.56.1~22.04.1
linux-nvidia	—	6.8.0-1022.25
linux-nvidia-6.11	—	6.11.0-1007.7
linux-nvidia-6.2	—	—
linux-nvidia-6.5	—	—
linux-nvidia-6.8	—	6.8.0-1022.25~22.04.2
linux-nvidia-lowlatency	—	6.8.0-1022.25.2
linux-nvidia-tegra	—	5.15.0-1032.32
linux-nvidia-tegra-5.15	—	5.15.0-1032.32~20.04.1
linux-nvidia-tegra-igx	—	5.15.0-1020.20
linux-oem	—	—
linux-oem-5.10	—	—
linux-oem-5.13	—	—
linux-oem-5.14	—	—
linux-oem-5.17	—	—
linux-oem-5.6	—	—
linux-oem-6.0	—	—
linux-oem-6.1	—	—
linux-oem-6.11	—	6.11.0-1015.15
linux-oem-6.5	—	—
linux-oem-6.8	—	6.8.0-1024.24
linux-oracle	—	6.8.0-1020.21
linux-oracle-5.0	—	—
linux-oracle-5.11	—	—
linux-oracle-5.13	—	—
linux-oracle-5.15	—	5.15.0-1071.77~20.04.1
linux-oracle-5.3	—	—
linux-oracle-5.4	—	5.4.0-1138.147~18.04.1
linux-oracle-5.8	—	—
linux-oracle-6.5	—	—
linux-oracle-6.8	—	6.8.0-1020.21~22.04.1
linux-raspi	—	6.8.0-1019.23
linux-raspi-5.4	—	5.4.0-1129.142~18.04.1
linux-raspi-realtime	—	6.8.0-2018.19
linux-raspi2	—	—
linux-realtime	—	6.8.1-1016.17
linux-realtime-6.8	—	6.8.1-1016.17~22.04.1
linux-riscv	—	6.8.0-53.55.1
linux-riscv-5.11	—	—
linux-riscv-5.15	—	5.15.0-1069.73~20.04.1
linux-riscv-5.19	—	—
linux-riscv-5.8	—	—
linux-riscv-6.5	—	—
linux-riscv-6.8	—	6.8.0-53.55.1~22.04.1
linux-starfive-5.19	—	—
linux-starfive-6.2	—	—
linux-starfive-6.5	—	—
linux-xilinx	—	6.8.0-1017.18
linux-xilinx-zynqmp	—	5.15.0-1039.43

References

REPORT https://ubuntu.com/security/CVE-2024-47692

REPORT https://www.cve.org/CVERecord?id=CVE-2024-47692

REPORT https://git.kernel.org/linus/22451a16b7ab7debefce660672566be887db1637

REPORT https://git.kernel.org/stable/c/0f1d007bbea38a61cf9c5392708dc70ae9d84a3d

REPORT https://git.kernel.org/stable/c/b7b7a8df41ef18862dd6b22289fb46c2c12398af

REPORT https://git.kernel.org/stable/c/84a563d136faf514fdad1ade28d7a142fd313cb8

REPORT https://git.kernel.org/stable/c/318f70857caab3da9a6ada9bc8c1f4f7591b695e

REPORT https://git.kernel.org/stable/c/766d5fbd78f7a52b3888449a0358760477b74602

REPORT https://git.kernel.org/stable/c/1ff8be8d008b9ddc8e7043fbddd37d5d451b271b

REPORT https://git.kernel.org/stable/c/22451a16b7ab7debefce660672566be887db1637

ADVISORY https://ubuntu.com/security/notices/USN-7166-1

ADVISORY https://ubuntu.com/security/notices/USN-7166-2

ADVISORY https://ubuntu.com/security/notices/USN-7166-3

ADVISORY https://ubuntu.com/security/notices/USN-7186-1

ADVISORY https://ubuntu.com/security/notices/USN-7186-2

ADVISORY https://ubuntu.com/security/notices/USN-7194-1

ADVISORY https://ubuntu.com/security/notices/USN-7166-4

ADVISORY https://ubuntu.com/security/notices/USN-7276-1

ADVISORY https://ubuntu.com/security/notices/USN-7277-1

ADVISORY https://ubuntu.com/security/notices/USN-7293-1

ADVISORY https://ubuntu.com/security/notices/USN-7294-1

ADVISORY https://ubuntu.com/security/notices/USN-7295-1

ADVISORY https://ubuntu.com/security/notices/USN-7301-1

ADVISORY https://ubuntu.com/security/notices/USN-7303-1

ADVISORY https://ubuntu.com/security/notices/USN-7304-1

ADVISORY https://ubuntu.com/security/notices/USN-7294-2

ADVISORY https://ubuntu.com/security/notices/USN-7294-3

ADVISORY https://ubuntu.com/security/notices/USN-7303-2

ADVISORY https://ubuntu.com/security/notices/USN-7310-1

ADVISORY https://ubuntu.com/security/notices/USN-7311-1

ADVISORY https://ubuntu.com/security/notices/USN-7303-3

ADVISORY https://ubuntu.com/security/notices/USN-7294-4

ADVISORY https://ubuntu.com/security/notices/USN-7384-1

ADVISORY https://ubuntu.com/security/notices/USN-7385-1

ADVISORY https://ubuntu.com/security/notices/USN-7386-1

ADVISORY https://ubuntu.com/security/notices/USN-7393-1

ADVISORY https://ubuntu.com/security/notices/USN-7384-2

ADVISORY https://ubuntu.com/security/notices/USN-7401-1

ADVISORY https://ubuntu.com/security/notices/USN-7403-1

ADVISORY https://ubuntu.com/security/notices/USN-7413-1

ADVISORY https://ubuntu.com/security/notices/USN-7468-1

ADVISORY https://ubuntu.com/security/notices/USN-7539-1

ADVISORY https://ubuntu.com/security/notices/USN-7540-1

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🛡️ CVE-2024-47692 on Ubuntu — linux

Description

Distribution advisory

How this vulnerability can be exploited

CVSS metrics in full

Affected software

Timeline and source

References

Other advisories for this package

CVE-2024-47692 on other distributions

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