SB20260325204 - SUSE update for the Linux Kernel
Published: March 25, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 27 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2023-53817)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mpi_cmp_ui() function in lib/mpi/mpi-cmp.c. A local user can perform a denial of service (DoS) attack.
2) Buffer overflow (CVE-ID: CVE-2024-38542)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the mana_ib_install_cq_cb() function in drivers/infiniband/hw/mana/cq.c. A local user can escalate privileges on the system.
3) Improper locking (CVE-ID: CVE-2025-37861)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the mpi3mr_process_factsdata(), mpi3mr_process_admin_reply_q(), mpi3mr_process_op_reply_q(), mpi3mr_check_op_admin_proc() and mpi3mr_soft_reset_handler() functions in drivers/scsi/mpi3mr/mpi3mr_fw.c. A local user can perform a denial of service (DoS) attack.
4) Buffer overflow (CVE-ID: CVE-2025-39817)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the efivarfs_d_compare() function in fs/efivarfs/super.c. A local user can perform a denial of service (DoS) attack.
5) Input validation error (CVE-ID: CVE-2025-39964)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the include/crypto/if_alg.h. A local user can perform a denial of service (DoS) attack.
6) Out-of-bounds read (CVE-ID: CVE-2025-40099)
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 parse_dfs_referrals() function in fs/smb/client/misc.c. A local user can perform a denial of service (DoS) attack.
7) Memory leak (CVE-ID: CVE-2025-40103)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the get_smb2_acl_by_path() and set_smb2_acl() functions in fs/smb/client/smb2ops.c. A local user can perform a denial of service (DoS) attack.
8) Input validation error (CVE-ID: CVE-2025-40253)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the mpc_rcvd_sweep_req() function in drivers/s390/net/ctcm_mpc.c. A local user can perform a denial of service (DoS) attack.
9) Use-after-free (CVE-ID: CVE-2025-71066)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ets_qdisc_change() function in net/sched/sch_ets.c. A local user can escalate privileges on the system.
10) Use of uninitialized resource (CVE-ID: CVE-2025-71113)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the rng_accept_parent() function in crypto/algif_rng.c. A local user can perform a denial of service (DoS) attack.
11) Out-of-bounds read (CVE-ID: CVE-2025-71231)
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 function in drivers/crypto/intel/iaa/iaa_crypto_main.c. A local user can perform a denial of service (DoS) attack.
12) Use-after-free (CVE-ID: CVE-2026-23004)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the rt6_uncached_list_add() function in net/ipv6/route.c. A local user can escalate privileges on the system.
13) Buffer overflow (CVE-ID: CVE-2026-23054)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the netvsc_set_rxfh() function in drivers/net/hyperv/netvsc_drv.c. A local user can perform a denial of service (DoS) attack.
14) NULL pointer dereference (CVE-ID: CVE-2026-23060)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the crypto_authenc_esn_encrypt() and crypto_authenc_esn_decrypt() functions in crypto/authencesn.c. A local user can perform a denial of service (DoS) attack.
15) Use-after-free (CVE-ID: CVE-2026-23074)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the teql_qdisc_init() function in net/sched/sch_teql.c. A local user can escalate privileges on the system.
16) Use-after-free (CVE-ID: CVE-2026-23089)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the parse_audio_unit() function in sound/usb/mixer.c. A local user can escalate privileges on the system.
17) Use-after-free (CVE-ID: CVE-2026-23111)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nft_map_catchall_activate() function in net/netfilter/nf_tables_api.c. A local user can escalate privileges on the system.
18) Input validation error (CVE-ID: CVE-2026-23141)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the range_is_hole_in_parent() function in fs/btrfs/send.c. A local user can perform a denial of service (DoS) attack.
19) Improper locking (CVE-ID: CVE-2026-23157)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the fs/btrfs/extent_io.h. A local user can perform a denial of service (DoS) attack.
20) Use-after-free (CVE-ID: CVE-2026-23191)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the is_access_interleaved() and loopback_check_format() functions in sound/drivers/aloop.c. A local user can escalate privileges on the system.
21) Use-after-free (CVE-ID: CVE-2026-23202)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tegra_qspi_combined_seq_xfer() function in drivers/spi/spi-tegra210-quad.c. A local user can escalate privileges on the system.
22) Out-of-bounds read (CVE-ID: CVE-2026-23204)
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 u32_classify() function in net/sched/cls_u32.c. A local user can perform a denial of service (DoS) attack.
23) NULL pointer dereference (CVE-ID: CVE-2026-23207)
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_cpu_based_xfer(), handle_dma_based_xfer() and tegra_qspi_isr_thread() functions in drivers/spi/spi-tegra210-quad.c. A local user can perform a denial of service (DoS) attack.
24) Use-after-free (CVE-ID: CVE-2026-23209)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the macvlan_common_newlink() function in drivers/net/macvlan.c. A local user can escalate privileges on the system.
25) Resource management error (CVE-ID: CVE-2026-23214)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the fs/btrfs/fs.h. A local user can perform a denial of service (DoS) attack.
26) Improper Access Control (CVE-ID: CVE-2026-23268)
The vulnerability allows a local user to escalate privileges, modify AppArmor security policies, and cause a denial of service.
The vulnerability exists due to improper access control in the AppArmor policy management interface when handling file descriptor operations. A local user can open the apparmorfs interface and pass the file descriptor to a privileged process, tricking it into performing privileged policy management operations on behalf of the user.
The user must have access to a privileged process that can be manipulated to write to the AppArmor interface. Once exploited, the user can load, replace, or remove AppArmor profiles, leading to removal of confinement, denial of service by blocking application execution, bypassing user namespace restrictions, and potentially enabling local privilege escalation via kernel exploits.
27) Out-of-bounds read (CVE-ID: CVE-2026-23269)
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in the AppArmor subsystem's DFA state table validation when processing untrusted policy data. A local user can provide a specially crafted AppArmor policy with an out-of-bounds start state to trigger an out-of-bounds read during policy unpacking.
Exploitation requires the ability to load or modify AppArmor policies, which typically requires privileged access. The out-of-bounds read may expose contents of kernel memory.
Remediation
Install update from vendor's website.