CVE-2024-26856 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: Fix use after free inside sparx5_del_mact_entry Based on the static analyzis of the code it looks like when an entry from the MAC table was removed, the entry was still used after being freed. More precise the vid of the mac_entry was used after calling devm_kfree on the mac_entry. The fix consists in first using the vid of the mac_entry to delete the entry from the HW and after that to free it.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52
https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025
https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674
https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64
https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6
https://lore.kernel.org/linux-cve-announce/2024041724-CVE-2024-26856-3dbf@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-26856
https://www.cve.org/CVERecord?id=CVE-2024-26856

History

No history.

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-04-17T10:17:18.475Z

Updated: 2025-05-04T08:58:04.898Z

Reserved: 2024-02-19T14:20:24.183Z

Link: CVE-2024-26856

Vulnrichment

Updated: 2024-08-02T00:14:13.666Z

NVD

Status : Awaiting Analysis

Published: 2024-04-17T11:15:08.740

Modified: 2024-11-21T09:03:13.557

Link: CVE-2024-26856

Redhat

Severity : Low

Publid Date: 2024-04-17T00:00:00Z

Links: CVE-2024-26856 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-26856", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.183Z", "datePublished": "2024-04-17T10:17:18.475Z", "dateUpdated": "2025-05-04T08:58:04.898Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:58:04.898Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: Fix use after free inside sparx5_del_mact_entry\n\nBased on the static analyzis of the code it looks like when an entry\nfrom the MAC table was removed, the entry was still used after being\nfreed. More precise the vid of the mac_entry was used after calling\ndevm_kfree on the mac_entry.\nThe fix consists in first using the vid of the mac_entry to delete the\nentry from the HW and after that to free it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c"], "versions": [{"version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2", "lessThan": "e46274df1100fb0c06704195bfff5bfbd418bf64", "status": "affected", "versionType": "git"}, {"version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2", "lessThan": "0de693d68b0a18d5e256556c7c62d92cca35ad52", "status": "affected", "versionType": "git"}, {"version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2", "lessThan": "e83bebb718fd1f42549358730e1206164e0861d6", "status": "affected", "versionType": "git"}, {"version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2", "lessThan": "71809805b95052ff551922f11660008fb3666025", "status": "affected", "versionType": "git"}, {"version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2", "lessThan": "89d72d4125e94aa3c2140fedd97ce07ba9e37674", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.152", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.82", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.22", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.10", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.15.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.82"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.7.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64"}, {"url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52"}, {"url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6"}, {"url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025"}, {"url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674"}], "title": "net: sparx5: Fix use after free inside sparx5_del_mact_entry", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26856", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-01T19:36:26.233327Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:49:15.853Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.666Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.666Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26856", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-01T19:36:26.233327Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:24.047Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "net: sparx5: Fix use after free inside sparx5_del_mact_entry", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b37a1bae742f", "lessThan": "e46274df1100", "versionType": "git"}, {"status": "affected", "version": "b37a1bae742f", "lessThan": "0de693d68b0a", "versionType": "git"}, {"status": "affected", "version": "b37a1bae742f", "lessThan": "e83bebb718fd", "versionType": "git"}, {"status": "affected", "version": "b37a1bae742f", "lessThan": "71809805b950", "versionType": "git"}, {"status": "affected", "version": "b37a1bae742f", "lessThan": "89d72d4125e9", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"status": "unaffected", "version": "0", "lessThan": "5.14", "versionType": "custom"}, {"status": "unaffected", "version": "5.15.152", "versionType": "custom", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.82", "versionType": "custom", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.22", "versionType": "custom", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7.10", "versionType": "custom", "lessThanOrEqual": "6.7.*"}, {"status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64"}, {"url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52"}, {"url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6"}, {"url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025"}, {"url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: Fix use after free inside sparx5_del_mact_entry\n\nBased on the static analyzis of the code it looks like when an entry\nfrom the MAC table was removed, the entry was still used after being\nfreed. More precise the vid of the mac_entry was used after calling\ndevm_kfree on the mac_entry.\nThe fix consists in first using the vid of the mac_entry to delete the\nentry from the HW and after that to free it."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:23:57.926Z"}}}, "cveMetadata": {"cveId": "CVE-2024-26856", "state": "PUBLISHED", "dateUpdated": "2024-08-02T00:14:13.666Z", "dateReserved": "2024-02-19T14:20:24.183Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-17T10:17:18.475Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: Fix use after free inside sparx5_del_mact_entry\n\nBased on the static analyzis of the code it looks like when an entry\nfrom the MAC table was removed, the entry was still used after being\nfreed. More precise the vid of the mac_entry was used after calling\ndevm_kfree on the mac_entry.\nThe fix consists in first using the vid of the mac_entry to delete the\nentry from the HW and after that to free it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sparx5: corrige el use after free dentro de sparx5_del_mact_entry Seg\u00fan el an\u00e1lisis est\u00e1tico del c\u00f3digo, parece que cuando se elimin\u00f3 una entrada de la tabla MAC, la entrada todav\u00eda se us\u00f3 despu\u00e9s de ser liberado. M\u00e1s precisamente, el video de mac_entry se us\u00f3 despu\u00e9s de llamar a devm_kfree en mac_entry. La soluci\u00f3n consiste en utilizar primero el vid de mac_entry para eliminar la entrada del HW y luego liberarla."}], "id": "CVE-2024-26856", "lastModified": "2024-11-21T09:03:13.557", "metrics": {}, "published": "2024-04-17T11:15:08.740", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}