7.8

CVE-2024-57899

wifi: mac80211: fix mbss changed flags corruption on 32 bit systems

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: fix mbss changed flags corruption on 32 bit systems

On 32-bit systems, the size of an unsigned long is 4 bytes,
while a u64 is 8 bytes. Therefore, when using
or_each_set_bit(bit, &bits, sizeof(changed) * BITS_PER_BYTE),
the code is incorrectly searching for a bit in a 32-bit
variable that is expected to be 64 bits in size,
leading to incorrect bit finding.

Solution: Ensure that the size of the bits variable is correctly
adjusted for each architecture.

 Call Trace:
  ? show_regs+0x54/0x58
  ? __warn+0x6b/0xd4
  ? ieee80211_link_info_change_notify+0xcc/0xd4 [mac80211]
  ? report_bug+0x113/0x150
  ? exc_overflow+0x30/0x30
  ? handle_bug+0x27/0x44
  ? exc_invalid_op+0x18/0x50
  ? handle_exception+0xf6/0xf6
  ? exc_overflow+0x30/0x30
  ? ieee80211_link_info_change_notify+0xcc/0xd4 [mac80211]
  ? exc_overflow+0x30/0x30
  ? ieee80211_link_info_change_notify+0xcc/0xd4 [mac80211]
  ? ieee80211_mesh_work+0xff/0x260 [mac80211]
  ? cfg80211_wiphy_work+0x72/0x98 [cfg80211]
  ? process_one_work+0xf1/0x1fc
  ? worker_thread+0x2c0/0x3b4
  ? kthread+0xc7/0xf0
  ? mod_delayed_work_on+0x4c/0x4c
  ? kthread_complete_and_exit+0x14/0x14
  ? ret_from_fork+0x24/0x38
  ? kthread_complete_and_exit+0x14/0x14
  ? ret_from_fork_asm+0xf/0x14
  ? entry_INT80_32+0xf0/0xf0

[restore no-op path for no changes]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version < 6.6.70
LinuxLinux Kernel Version >= 6.7 < 6.12.9
LinuxLinux Kernel Version6.13 Updaterc1
LinuxLinux Kernel Version6.13 Updaterc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.122
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/36b739637d7042843f9df57212ecee6ed6e0d4b2
Patch
https://git.kernel.org/stable/c/49dba1ded8dd5a6a12748631403240b2ab245c34
Patch
https://git.kernel.org/stable/c/86772872f9f5097cd03d0e1c6813238bd38c250b
Patch