SB2026021703 - Red Hat Enterprise Linux 9 update for kernel
Published: February 17, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2025-37882)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the handle_tx_event() function in drivers/usb/host/xhci-ring.c. A local user can perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2025-38415)
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 squashfs_fill_super() function in fs/squashfs/super.c. A local user can perform a denial of service (DoS) attack.
3) Improper locking (CVE-ID: CVE-2025-38730)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the io_bundle_nbufs(), io_sendmsg(), io_net_kbuf_recyle(), io_send_zc() and io_sendmsg_zc() functions in io_uring/net.c. A local user can perform a denial of service (DoS) attack.
4) Out-of-bounds read (CVE-ID: CVE-2025-39760)
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 usb_parse_ss_endpoint_companion() function in drivers/usb/core/config.c. A local user can perform a denial of service (DoS) attack.
5) Input validation error (CVE-ID: CVE-2025-39933)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the recv_done() function in fs/smb/client/smbdirect.c. A local user can perform a denial of service (DoS) attack.
6) Use-after-free (CVE-ID: CVE-2025-40271)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pde_put(), remove_proc_entry() and remove_proc_subtree() functions in fs/proc/generic.c. A local user can escalate privileges on the system.
7) Out-of-bounds read (CVE-ID: CVE-2025-40304)
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 bit_putcs() function in drivers/video/fbdev/core/bitblit.c. A local user can perform a denial of service (DoS) attack.
8) Input validation error (CVE-ID: CVE-2025-40269)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the snd_usb_endpoint_set_params() function in sound/usb/endpoint.c. A local user can perform a denial of service (DoS) attack.
9) Buffer overflow (CVE-ID: CVE-2025-68349)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the pnfs_mark_layout_stateid_invalid() function in fs/nfs/pnfs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.