🛡️ CVE-2024-57849 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: s390/cpum_sf: Handle CPU hotplug remove during sampling CPU hotplug remove handling triggers the following function call sequence: CPUHP_AP_PERF_S390_SF_ONLINE --> s390_pmu_sf_offline_cpu() ... CPUHP_AP_PERF_ONLINE --> perf_event_exit_cpu() The s390 CPUMF sampling CPU hotplug handler invokes: s390_pmu_sf_offline_cpu() +--> cpusf_pmu_setup() +--> setup_pmc_cpu() +--> deallocate_buffers() This function de-allocates all sampling data buffers (SDBs) allocated for that CPU at event initialization. It also clears the PMU_F_RESERVED bit. The CPU is gone and can not be sampled. With the event still being active on the removed CPU, the CPU event hotplug support in kernel performance subsystem triggers the following function calls on the removed CPU: perf_event_exit_cpu() +--> perf_event_exit_cpu_context() +--> __perf_event_exit_context() +--> __perf_remove_from_context() +--> event_sched_out() +--> cpumsf_pmu_del() +--> cpumsf_pmu_stop() +--> hw_perf_event_update() to stop and remove the event. During removal of the event, the sampling device driver tries to read out the remaining samples from the sample data buffers (SDBs). But they have already been freed (and may have been re-assigned). This may lead to a use after free situation in which case the samples are most likely invalid. In the best case the memory has not been reassigned and still contains valid data. Remedy this situation and check if the CPU is still in reserved state (bit PMU_F_RESERVED set). In this case the SDBs have not been released an contain valid data. This is always the case when the event is removed (and no CPU hotplug off occured). If the PMU_F_RESERVED bit is not set, the SDB buffers are gone.

Distribution advisory

This page covers CVE-2024-57849 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-58.60; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, 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 high, integrity high, availability high.

CVSS metrics in full

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

Attack vector: Local — a local account, shell or session on the host is needed.
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: High — total loss, or loss the attacker controls.
Integrity impact: High — total loss, or loss the attacker controls.
Availability impact: High — total loss, or loss the attacker controls.

Affected software

UBUNTU-CVE-2024-57849 is recorded against 134 packages.

linux (fixed in 6.8.0-58.60)
linux-allwinner-5.19
linux-aws (fixed in 6.8.0-1027.29)
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 (fixed in 5.15.0-1080.87~20.04.1)
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 6.8.0-1027.29~22.04.1)
linux-aws-fips (fixed in 5.15.0-1080.87+fips1)
linux-aws-hwe
linux-azure (fixed in 6.8.0-1027.32)
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 (fixed in 5.15.0-1086.95~20.04.1)
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 (fixed in 5.4.0-1147.154~18.04.1)

Show the remaining 110 packages

linux-azure-5.8
linux-azure-6.11 (fixed in 6.11.0-1012.12~24.04.1)
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 (fixed in 6.8.0-1027.32~22.04.1)
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips (fixed in 5.15.0-1083.92+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 6.8.0-1028.30)
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 (fixed in 5.15.0-1081.90~20.04.1)
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 (fixed in 5.4.0-1145.154~18.04.1)
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 6.8.0-1028.30~22.04.1)
linux-gcp-fips (fixed in 5.15.0-1079.88+fips1)
linux-gke (fixed in 6.8.0-1023.27)
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop (fixed in 6.8.0-1010.12)
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 (fixed in 5.15.0-136.147~20.04.1)
linux-hwe-5.19
linux-hwe-5.4 (fixed in 5.4.0-211.231~18.04.1)
linux-hwe-5.8
linux-hwe-6.11 (fixed in 6.11.0-21.21~24.04.1)
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 (fixed in 6.8.0-58.60~22.04.1)
linux-hwe-edge
linux-ibm (fixed in 6.8.0-1024.24)
linux-ibm-5.15 (fixed in 5.15.0-1074.77~20.04.1)
linux-ibm-5.4 (fixed in 5.4.0-1090.95~18.04.1)
linux-ibm-6.8 (fixed in 6.8.0-1024.24~22.04.1)
linux-intel-5.13
linux-intel-iot-realtime (fixed in 5.15.0-1073.75)
linux-intel-iotg (fixed in 5.15.0-1075.81)
linux-intel-iotg-5.15 (fixed in 5.15.0-1077.83~20.04.1)
linux-iot (fixed in 5.4.0-1048.51)
linux-kvm (fixed in 5.15.0-1076.81)
linux-lowlatency (fixed in 6.8.0-58.60.1)
linux-lowlatency-hwe-5.15 (fixed in 5.15.0-135.146~20.04.1)
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 (fixed in 6.8.0-58.60.1~22.04.1)
linux-nvidia (fixed in 6.8.0-1026.29)
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 6.8.0-1026.29~22.04.1)
linux-nvidia-lowlatency (fixed in 6.8.0-1026.29.1)
linux-nvidia-tegra (fixed in 6.8.0-1008.8)
linux-nvidia-tegra-5.15 (fixed in 5.15.0-1039.39~20.04.1)
linux-nvidia-tegra-igx (fixed in 5.15.0-1021.21)
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 6.11.0-1017.17)
linux-oem-6.5
linux-oem-6.8 (fixed in 6.8.0-1026.26)
linux-oracle (fixed in 6.8.0-1024.25)
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 (fixed in 5.15.0-1077.83~20.04.1)
linux-oracle-5.3
linux-oracle-5.4 (fixed in 5.4.0-1140.149~18.04.1)
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 (fixed in 6.8.0-1024.25~22.04.1)
linux-raspi (fixed in 6.8.0-1028.32)
linux-raspi-5.4 (fixed in 5.4.0-1129.142~18.04.1)
linux-raspi-realtime (fixed in 6.8.0-2023.24)
linux-raspi2
linux-realtime (fixed in 6.8.1-1020.21)
linux-realtime-6.8 (fixed in 6.8.1-1020.21~22.04.1)
linux-riscv (fixed in 6.8.0-58.60.1)
linux-riscv-5.11
linux-riscv-5.15 (fixed in 5.15.0-1075.79~20.04.1)
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 (fixed in 6.8.0-58.60.1~22.04.1)
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 5.15.0-1044.48)

Timeline and source

Published on 11 January 2025 and last revised on 19 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-6xjj-65cr-mc7v (published 7 Jan 2026)
CGA-m3jq-vcq5-mqrx (published 7 Jan 2026)

CVE-2024-57849 on other distributions

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

BellSoft — BELL-CVE-2024-57849 Base record — CVE-2024-57849 Debian — DEBIAN-CVE-2024-57849 Debian 11 (Root.io) — ROOT-OS-DEBIAN-11-CVE-2024-57849

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2025-01-11

Updated 2026-08-20

Modified 2026-08-19

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.8.0-58.60
linux-allwinner-5.19	—	—
linux-aws	—	6.8.0-1027.29
linux-aws-5.0	—	—
linux-aws-5.11	—	—
linux-aws-5.13	—	—
linux-aws-5.15	—	5.15.0-1080.87~20.04.1
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	—	6.8.0-1027.29~22.04.1
linux-aws-fips	—	5.15.0-1080.87+fips1
linux-aws-hwe	—	—
linux-azure	—	6.8.0-1027.32
linux-azure-4.15	—	—
linux-azure-5.11	—	—
linux-azure-5.13	—	—
linux-azure-5.15	—	5.15.0-1086.95~20.04.1
linux-azure-5.19	—	—
linux-azure-5.3	—	—
linux-azure-5.4	—	5.4.0-1147.154~18.04.1
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	—	6.8.0-1027.32~22.04.1
linux-azure-edge	—	—
linux-azure-fde	—	—
linux-azure-fde-5.19	—	—
linux-azure-fde-6.2	—	—
linux-azure-fips	—	5.15.0-1083.92+fips1
linux-azure-nvidia	—	6.8.0-1014.15
linux-bluefield	—	—
linux-fips	—	6.8.0-78.78+fips1
linux-gcp	—	6.8.0-1028.30
linux-gcp-4.15	—	—
linux-gcp-5.11	—	—
linux-gcp-5.13	—	—
linux-gcp-5.15	—	5.15.0-1081.90~20.04.1
linux-gcp-5.19	—	—
linux-gcp-5.3	—	—
linux-gcp-5.4	—	5.4.0-1145.154~18.04.1
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	—	6.8.0-1028.30~22.04.1
linux-gcp-fips	—	5.15.0-1079.88+fips1
linux-gke	—	6.8.0-1023.27
linux-gke-4.15	—	—
linux-gke-5.15	—	—
linux-gke-5.4	—	—
linux-gkeop	—	6.8.0-1010.12
linux-gkeop-5.15	—	—
linux-gkeop-5.4	—	—
linux-hwe	—	—
linux-hwe-5.11	—	—
linux-hwe-5.13	—	—
linux-hwe-5.15	—	5.15.0-136.147~20.04.1
linux-hwe-5.19	—	—
linux-hwe-5.4	—	5.4.0-211.231~18.04.1
linux-hwe-5.8	—	—
linux-hwe-6.11	—	6.11.0-21.21~24.04.1
linux-hwe-6.2	—	—
linux-hwe-6.5	—	—
linux-hwe-6.8	—	6.8.0-58.60~22.04.1
linux-hwe-edge	—	—
linux-ibm	—	6.8.0-1024.24
linux-ibm-5.15	—	5.15.0-1074.77~20.04.1
linux-ibm-5.4	—	5.4.0-1090.95~18.04.1
linux-ibm-6.8	—	6.8.0-1024.24~22.04.1
linux-intel-5.13	—	—
linux-intel-iot-realtime	—	5.15.0-1073.75
linux-intel-iotg	—	5.15.0-1075.81
linux-intel-iotg-5.15	—	5.15.0-1077.83~20.04.1
linux-iot	—	5.4.0-1048.51
linux-kvm	—	5.15.0-1076.81
linux-lowlatency	—	6.8.0-58.60.1
linux-lowlatency-hwe-5.15	—	5.15.0-135.146~20.04.1
linux-lowlatency-hwe-5.19	—	—
linux-lowlatency-hwe-6.2	—	—
linux-lowlatency-hwe-6.5	—	—
linux-lowlatency-hwe-6.8	—	6.8.0-58.60.1~22.04.1
linux-nvidia	—	6.8.0-1026.29
linux-nvidia-6.11	—	6.11.0-1007.7
linux-nvidia-6.2	—	—
linux-nvidia-6.5	—	—
linux-nvidia-6.8	—	6.8.0-1026.29~22.04.1
linux-nvidia-lowlatency	—	6.8.0-1026.29.1
linux-nvidia-tegra	—	6.8.0-1008.8
linux-nvidia-tegra-5.15	—	5.15.0-1039.39~20.04.1
linux-nvidia-tegra-igx	—	5.15.0-1021.21
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	—	6.11.0-1017.17
linux-oem-6.5	—	—
linux-oem-6.8	—	6.8.0-1026.26
linux-oracle	—	6.8.0-1024.25
linux-oracle-5.0	—	—
linux-oracle-5.11	—	—
linux-oracle-5.13	—	—
linux-oracle-5.15	—	5.15.0-1077.83~20.04.1
linux-oracle-5.3	—	—
linux-oracle-5.4	—	5.4.0-1140.149~18.04.1
linux-oracle-5.8	—	—
linux-oracle-6.5	—	—
linux-oracle-6.8	—	6.8.0-1024.25~22.04.1
linux-raspi	—	6.8.0-1028.32
linux-raspi-5.4	—	5.4.0-1129.142~18.04.1
linux-raspi-realtime	—	6.8.0-2023.24
linux-raspi2	—	—
linux-realtime	—	6.8.1-1020.21
linux-realtime-6.8	—	6.8.1-1020.21~22.04.1
linux-riscv	—	6.8.0-58.60.1
linux-riscv-5.11	—	—
linux-riscv-5.15	—	5.15.0-1075.79~20.04.1
linux-riscv-5.19	—	—
linux-riscv-5.8	—	—
linux-riscv-6.5	—	—
linux-riscv-6.8	—	6.8.0-58.60.1~22.04.1
linux-starfive-5.19	—	—
linux-starfive-6.2	—	—
linux-starfive-6.5	—	—
linux-xilinx	—	6.8.0-1017.18
linux-xilinx-zynqmp	—	5.15.0-1044.48

References

REPORT https://ubuntu.com/security/CVE-2024-57849

REPORT https://www.cve.org/CVERecord?id=CVE-2024-57849

REPORT https://git.kernel.org/linus/a0bd7dacbd51c632b8e2c0500b479af564afadf3

REPORT https://git.kernel.org/stable/c/06a92f810df8037ca36157282ddcbefdcaf049b8

REPORT https://git.kernel.org/stable/c/238e3af849dfdcb1faed544349f7025e533f9aab

REPORT https://git.kernel.org/stable/c/99192c735ed4bfdff0d215ec85c8a87a677cb898

REPORT https://git.kernel.org/stable/c/a0bd7dacbd51c632b8e2c0500b479af564afadf3

REPORT https://git.kernel.org/stable/c/a69752f1e5de817941a2ea0609254f6f25acd274

REPORT https://git.kernel.org/stable/c/b5be6a0bb639d165c8418d8dddd8f322587be8be

REPORT https://git.kernel.org/stable/c/be54e6e0f93a39a9c00478d70d12956a5f3d5b9b

ADVISORY https://ubuntu.com/security/notices/USN-7379-1

ADVISORY https://ubuntu.com/security/notices/USN-7380-1

ADVISORY https://ubuntu.com/security/notices/USN-7381-1

ADVISORY https://ubuntu.com/security/notices/USN-7382-1

ADVISORY https://ubuntu.com/security/notices/USN-7387-1

ADVISORY https://ubuntu.com/security/notices/USN-7388-1

ADVISORY https://ubuntu.com/security/notices/USN-7389-1

ADVISORY https://ubuntu.com/security/notices/USN-7390-1

ADVISORY https://ubuntu.com/security/notices/USN-7387-2

ADVISORY https://ubuntu.com/security/notices/USN-7387-3

ADVISORY https://ubuntu.com/security/notices/USN-7391-1

ADVISORY https://ubuntu.com/security/notices/USN-7392-1

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

ADVISORY https://ubuntu.com/security/notices/USN-7392-2

ADVISORY https://ubuntu.com/security/notices/USN-7379-2

ADVISORY https://ubuntu.com/security/notices/USN-7392-3

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

ADVISORY https://ubuntu.com/security/notices/USN-7392-4

ADVISORY https://ubuntu.com/security/notices/USN-7407-1

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

ADVISORY https://ubuntu.com/security/notices/USN-7421-1

ADVISORY https://ubuntu.com/security/notices/USN-7449-1

ADVISORY https://ubuntu.com/security/notices/USN-7450-1

ADVISORY https://ubuntu.com/security/notices/USN-7451-1

ADVISORY https://ubuntu.com/security/notices/USN-7452-1

ADVISORY https://ubuntu.com/security/notices/USN-7453-1

ADVISORY https://ubuntu.com/security/notices/USN-7458-1

ADVISORY https://ubuntu.com/security/notices/USN-7459-1

ADVISORY https://ubuntu.com/security/notices/USN-7463-1

ADVISORY https://ubuntu.com/security/notices/USN-7449-2

ADVISORY https://ubuntu.com/security/notices/USN-7459-2

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

ADVISORY https://ubuntu.com/security/notices/USN-7523-1

ADVISORY https://ubuntu.com/security/notices/USN-7524-1

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

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

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🛡️ CVE-2024-57849 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-2024-57849 on other distributions

Is linux part of your stack?

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