Linux Kernel vulnerabilities

CVE-2026-52955 [CRITICAL] CWE-125 CVE-2026-52955: In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-b In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in crush_decode() A message of type CEPH_MSG_OSD_MAP containing a crush map with at least one bucket has two fields holding the bucket algorithm. If the values in these two fields differ, an out-of-bounds access can occur. This is the c

CVE-2014-4943 [MEDIUM] CWE-269 CVE-2014-4943: The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.

CVE-2026-64269 [CRITICAL] CVE-2026-64269: In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg When the server answers an RTRS READ, rdma_write_sg() builds the source scatter/gather entry for the IB_WR_RDMA_WRITE that returns data to the peer. Its length is taken directly from the wire descriptor: plist->length

CVE-2026-31682 [CRITICAL] CWE-125 CVE-2026-31682: In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: linearize s In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: linearize skb before parsing ND options br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header and target address are available, so the

CVE-2010-3848 [MEDIUM] CWE-787 CVE-2010-3848: Stack-based buffer overflow in the econet_sendmsg function in net/econet/af_econet.c in the Linux ke Stack-based buffer overflow in the econet_sendmsg function in net/econet/af_econet.c in the Linux kernel before 2.6.36.2, when an econet address is configured, allows local users to gain privileges by providing a large number of iovec structures.

CVE-2026-64394 [HIGH] CVE-2026-64394: In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITE_DAC/WRITE_OW In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITE_DAC/WRITE_OWNER check to SMB2 SET_INFO SECURITY commit cc57232cae23 ("ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTL_SET_SPARSE") added a fp->daccess gate to fsctl_set_sparse and noted that "similar handle-level checks exist in other functions bu

CVE-2019-14896 [CRITICAL] CWE-122 CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.

CVE-2013-4579 [MEDIUM] CWE-310 CVE-2013-4579: The ath9k_htc_set_bssid_mask function in drivers/net/wireless/ath/ath9k/htc_drv_main.c in the Linux The ath9k_htc_set_bssid_mask function in drivers/net/wireless/ath/ath9k/htc_drv_main.c in the Linux kernel through 3.12 uses a BSSID masking approach to determine the set of MAC addresses on which a Wi-Fi device is listening, which allows remote attackers to discover the original MAC address after spoofing by sending a series of packets to MAC addresse

CVE-2022-47942 [HIGH] CWE-787 CVE-2022-47942: An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a hea An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.

CVE-2019-16746 [CRITICAL] CWE-120 CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not ch An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

CVE-2026-52914 [CRITICAL] CWE-787 CVE-2026-52914: In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix fragment reasse In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix fragment reassembly length accounting batman-adv keeps a running payload length for queued fragments and uses it to validate a fragment chain before reassembly. That accounting currently allows the accumulated fragment length to be truncated during updates. As a

CVE-2024-53095 [CRITICAL] CWE-416 CVE-2024-53095: In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free of network namespace. Recently, we got a customer report that CIFS triggers oops while reconnecting to a server. [0] The workload runs on Kubernetes, and some pods mount CIFS servers in non-root network namespaces. The problem rarely happened, but

CVE-2026-43465 [CRITICAL] CVE-2026-43465: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix XDP multi-bu In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpf_xdp_pull_data() or bpf_xdp_adjust_tail(). The referenced commit in the fixes tag corrected the assumption in the mlx5 driver that the X

CVE-1999-1018 [HIGH] CVE-1999-1018: IPChains in Linux kernels 2.2.10 and earlier does not reassemble IP fragments before checking the he IPChains in Linux kernels 2.2.10 and earlier does not reassemble IP fragments before checking the header information, which allows a remote attacker to bypass the filtering rules using several fragments with 0 offsets.

CVE-2026-53246 [CRITICAL] CWE-787 CVE-2026-53246: In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing When a listening SCTP server processes a COOKIE_ECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked by sctp_process_init() using sctp_walk_params().

CVE-2005-1263 [HIGH] CVE-2005-1263: The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local users to execute arbitrary code via an ELF binary that, in certain conditions involving the create_elf_tables function, causes a negative length argument to pass a signed integer comparison, leading to a buffer overflow.

CVE-2019-9213 [MEDIUM] CWE-476 CVE-2019-9213: In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

CVE-2009-4141 [HIGH] CWE-399 CVE-2009-4141: Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

CVE-2019-1125 [MEDIUM] CVE-2019-1125: An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted

CVE-2026-64320 [CRITICAL] CWE-125 CVE-2026-64320: In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-boun In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmet_execute_disc_get_log_page() validates only the dword alignment of the host-supplied Log Page Offset (lpo). The 64-bit offset is then added to a small kzalloc'd buffer that holds the discovery log page and