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CVE-2026-98388

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : <=6.1.*, d54f14655fd7d7b293698a8b6918563c4c0465e7, 6.18.40, <=6.12.*, 7.2.7, <e780259b54e618ceb4763fbc21314acf3565e813, 6.18.53, 0, <0d86cd6b709c39216e6ee5ea8f0fc4242bbb2b53, <6.12.111, 7.1.4, <63be3d8511bdafa095cd14a393cbf3c58dbbb928, <3feb4020bfb7ccf0d347f27051639d25e19cd65d, <5.10.271, c1cfd63326f5d09999134e9052c353faf738286e, 6.1.178, <6.18.53, 5.10.271, 6.6.158, 6.12.97, <=5.10.*, <=6.6.*, 6.1.189, 6650527444dadc63d84aa939d14ecba4fadb2f69, <6.6.158, bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9, <5.15.222, <=6.18.*, 5.15.222, 5.15.212, f9b4b03ccc9c69bf7f7298d4559906ebea7143b3, 5.10.261, 6.6.145, <=7.2.*, <6.1.189, ae1e630bcaac739f625822078edbaea98366930d, 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4, <955973fff4a36d39a848b00cac1706863f568fe1, <550feab5b01000ab314868b62211fb3ddfd600e8, <=*, <=5.15.*, 7456ae990a9738962b33146916fabca62ae3d4e0, <7.2, <19ddef61ee0a49782a60f8f497e50597ad5de2da, <5aacc19ba2b1faf84c4a2f2cf9a1784e03d1ff38, 7.2, 6.12.111, 7.3

Description

In the Linux kernel, the following vulnerability has been resolved: exec: do_close_on_exec() before taking exec_update_lock do_close_on_exec() currently happens while holding the exec_update_lock, which is used in a lot of places that access process state to synchronize access checks. I recently added another such use of exec_update_lock, causing a regression. do_close_on_exec() can block waiting for a reply from a filesystem. That means a hung filesystem can block codepaths that use exec_update_lock; and it also means that a FUSE filesystem which attempts to inspect the calling process can deadlock. To avoid such problems, move do_close_on_exec() before the exec_update_lock is taken, but after the FD table has been copied if necessary. I have looked through all the calls between the old and new position of the do_close_on_exec() call; there seems to be no file descriptor table access in between.

Gravité et risque d'exploitation

CVE-2026-98388 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.22 %, ce qui la place devant 11.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <=6.1.*, d54f14655fd7d7b293698a8b6918563c4c0465e7, 6.18.40, <=6.12.*, 7.2.7, <e780259b54e618ceb4763fbc21314acf3565e813, 6.18.53, 0, <0d86cd6b709c39216e6ee5ea8f0fc4242bbb2b53, <6.12.111, 7.1.4, <63be3d8511bdafa095cd14a393cbf3c58dbbb928, <3feb4020bfb7ccf0d347f27051639d25e19cd65d, <5.10.271, c1cfd63326f5d09999134e9052c353faf738286e, 6.1.178, <6.18.53, 5.10.271, 6.6.158, 6.12.97, <=5.10.*, <=6.6.*, 6.1.189, 6650527444dadc63d84aa939d14ecba4fadb2f69, <6.6.158, bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9, <5.15.222, <=6.18.*, 5.15.222, 5.15.212, f9b4b03ccc9c69bf7f7298d4559906ebea7143b3, 5.10.261, 6.6.145, <=7.2.*, <6.1.189, ae1e630bcaac739f625822078edbaea98366930d, 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4, <955973fff4a36d39a848b00cac1706863f568fe1, <550feab5b01000ab314868b62211fb3ddfd600e8, <=*, <=5.15.*, 7456ae990a9738962b33146916fabca62ae3d4e0, <7.2, <19ddef61ee0a49782a60f8f497e50597ad5de2da, <5aacc19ba2b1faf84c4a2f2cf9a1784e03d1ff38, 7.2, 6.12.111, 7.3) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

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