CVE-2026-46149

scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()

HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.14 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a 256-byte stack buffer, then will memcpy() cur_len bytes from that buffer. snprintf() returns the length the output would have had, which can exceed the buffer size when the fabric WWN is long because iSCSI IQN names can be up to 223 bytes. The check at the memcpy() site only guards the destination page write, not the source read, so memcpy() will read past the stack buffer and copy adjacent stack contents to the sysfs reader, which when CONFIG_FORTIFY_SOURCE is enabled, fortify_panic() will be triggered. Commit 27e06650a5ea ("scsi: target: target_core_configfs: Add length check to avoid buffer overflow") added the same bound to the target_lu_gp_members_show() but the tg_pt_gp variant was missed so resolve that here.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < d3cc9d490c207d57a289054397349f6f8c90354e ; affected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < db0a4759d62cad4ff891e2d81ae4be73bb57f4a4 ; affected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < 12f2201a56957ba020392223a7393a5eba080c1b ; affected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < 1f678d13e939f91840cb1ebe9b88544923539d3c ; affected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < 72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e ; affected c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 < 00d91bfdce5033f5d9b4915638ae9b0553848b5d
Linux · Linuxaffected 2.6.38 ; unaffected 0 < 2.6.38 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD