SB2025070205 - Red Hat Enterprise Linux 8 update for kernel
Published: July 2, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2022-49395)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the write_ldt_entry() function in arch/x86/um/ldt.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2022-49111)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the hci_disconn_phylink_complete_evt() function in net/bluetooth/hci_event.c. A local user can escalate privileges on the system.
3) Use-after-free (CVE-ID: CVE-2022-49114)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fc_exch_abts_resp() function in drivers/scsi/libfc/fc_exch.c. A local user can escalate privileges on the system.
4) Memory leak (CVE-ID: CVE-2022-49122)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the lookup_ioctl() function in drivers/md/dm-ioctl.c. A local user can perform a denial of service (DoS) attack.
5) Use-after-free (CVE-ID: CVE-2022-49328)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mt76_txq_stopped() and mt76_txq_schedule_list() functions in drivers/net/wireless/mediatek/mt76/tx.c, within the mt7921_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7921/main.c, within the mt7915_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7915/main.c, within the mt76x02_vif_init() and mt76x02_remove_interface() functions in drivers/net/wireless/mediatek/mt76/mt76x02_util.c, within the mt7615_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7615/main.c, within the mt7603_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7603/main.c, within the mt76_sta_add() function in drivers/net/wireless/mediatek/mt76/mac80211.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.