Aller au contenu
en Se connecter
Non notée

CVE-2024-46744 In the Linux kernel, the following vulnerability has been resolved: Squashfs: sanity check symbolic link size…

Description

In the Linux kernel, the following vulnerability has been resolved: Squashfs: sanity check symbolic link size Syzkiller reports a "KMSAN: uninit-value in pick_link" bug. This is caused by an uninitialised page, which is ultimately caused by a corrupted symbolic link size read from disk. The reason why the corrupted symlink size causes an uninitialised page is due to the following sequence of events: 1. squashfs_read_inode() is called to read the symbolic link from disk. This assigns the corrupted value 3875536935 to inode->i_size. 2. Later squashfs_symlink_read_folio() is called, which assigns this corrupted value to the length variable, which being a signed int, overflows producing a negative number. 3. The following loop that fills in the page contents checks that the copied bytes is less than length, which being negative means the loop is skipped, producing an uninitialised page. This patch adds a sanity check which checks that the symbolic link size is not larger than expected. -- V2: fix spelling mistake.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 6.11 premières → < 6.11 6.11
Linux 6.10 premières → < 6.10.10 6.10.10
Linux 6.6 premières → < 6.6.51 6.6.51
Linux 6.1 premières → < 6.1.110 6.1.110
Linux 5.15 premières → < 5.15.167 5.15.167
Linux 5.10 premières → < 5.10.226 5.10.226
Linux 5.4 premières → < 5.4.284 5.4.284
Linux 4.19 premières → < 4.19.322 4.19.322
Linux 2.6.29 Pas de correctif indiqué
Afficher les 4 autres branches
Produit Versions touchées Corrigé en
RUGGEDCOM RST2428P 3.2 premières → < 3.2 3.2
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 3.2 premières → < 3.2 3.2
SCALANCE XCM-/XRM-/XCH-/XRH-300 family 3.2 premières → < 3.2 3.2
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 premières → < 1.1.1 1.1.1

Références

Chronologie

  1. Publiée
  2. Dernière modification

Autres CVE de Linux

Les 18283 CVE de Linux →
CVE-2026-99270 In the Linux kernel, the following vulnerability has been resolved: tcp: Fix potential UAF in reqsk_timer_handler() 8.1 Élevée CVE-2026-99269 In the Linux kernel, the following vulnerability has been resolved: sched_ext: Wait for SCX_OPSS_DISPATCHING before… 7.8 Élevée CVE-2026-99261 In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: correct reservation fence slots for… Non notée CVE-2026-99260 In the Linux kernel, the following vulnerability has been resolved: ntfs: fix resident conversion in ntfs_new_attr_flags… Non notée
Suivre cette CVE