CVE-2024-49960

216.73.216.86

· Published 21/10/2024 18:15 · Modified 17/11/2024 15:15

Labels: CVE-2024-49960 2024-10-21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 CVE-2024-49960 CWE-416

Essential information

Published: 21/10/2024 18:15
Modified: 17/11/2024 15:15
Author: —
Creator: —
CVSS: 7.8 HIGH (v3.1)
CISA KEV: No
CWE: —
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS metrics

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix timer use-after-free on failed mount Syzbot has found an ODEBUG bug in ext4_fill_super The del_timer_sync function cancels the s_err_report timer, which reminds about filesystem errors daily. We should guarantee the timer is no longer active before kfree(sbi). When filesystem mounting fails, the flow goes to failed_mount3, where an error occurs when ext4_stop_mmpd is called, causing a read I/O failure. This triggers the ext4_handle_error function that ultimately re-arms the timer, leaving the s_err_report timer active before kfree(sbi) is called. Fix the issue by canceling the s_err_report timer after calling ext4_stop_mmpd.

NVD status

Status: Modified — CVE has been recently published to the CVE List and has been received by the NVD.
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD: View on NVD

Affected products (CPE)

Product	CPE
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`