CVE-2026-74349

The CVE-2026-74349 issue affects the Linux kernel’s OCFS2 filesystem, where FITRIM range handling incorrectly validated ranges that cross cluster boundaries. Specifically, ocfs2_trim_mainbm() trims the global bitmap in cluster units but only validates ranges against sb->s_blocksize; on filesys...

CVE-2026-74349 ocfs2: reject FITRIM ranges shorter than a cluster

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2trimmainbm trims the global bitmap in cluster units, but its too-short range validation only checks sb-sblocksize. On filesystems with a cluster size larger than the block...

CVE-2026-74349 ocfs2: reject FITRIM ranges shorter than a cluster

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2trimmainbm trims the global bitmap in cluster units, but its too-short range validation only checks sb-sblocksize. On filesystems with a cluster size larger than the block...

EUVD-2026-59444

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size setrqsize computes the RQ WQE size as "1 rqwqeshift" based on the user-provided rqwqeshift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shi...

CVE-2026-74297

The CVE-2026-74297 entry details a Linux kernel vulnerability in the RDMA/mlx5 path relating to RQ WQE size calculation. The flaw arises in set_rq_size(), which computes the RQ WQE size as 1 < 32; shifts of 32 are accepted and a shift of 31 can overflow a signed integer, causing undefined beha...

CVE-2026-74297 RDMA/mlx5: Fix undefined shift of user RQ WQE size

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size setrqsize computes the RQ WQE size as "1 rqwqeshift" based on the user-provided rqwqeshift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shi...

CVE-2026-74297 RDMA/mlx5: Fix undefined shift of user RQ WQE size

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size setrqsize computes the RQ WQE size as "1 rqwqeshift" based on the user-provided rqwqeshift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shi...

CVE-2026-74282

In the Linux kernel vulnerability CVE-2026-74282, the TIPC stack allows an oversized CONN_ACK to cause snt_unacked to underflow. The root cause is tipc_sk_conn_proto_rcv() subtracting the peer-supplied ack count from an unsigned 16-bit snt_unacked without ensuring it does not exceed the outstandi...

EUVD-2026-59429

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...

CVE-2026-74282 tipc: prevent snt_unacked underflow on CONN_ACK

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...

CVE-2026-74282 tipc: prevent snt_unacked underflow on CONN_ACK

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...

CVE-2026-74269

CVE-2026-74269 describes a Linux kernel issue where bnxt RX path under XDP head-grow can underflow the skb head when the head is adjusted by -256. The root cause is an underflow in bnxt_rx_multi_page_skb that builds the skb with napi_build_skb(data_ptr - bp->rx_offset, rxr->rx_page_size); b...

CVE-2026-74256

The CVE-2026-74256 family affects the Linux kernel’s BPF sockmap path, where bpf_msg_pop_data() bounds checks used 32-bit arithmetic on start/len. An unsigned-to-signed overflow could allow an out-of-range start/len, causing the pop loop to walk past scatterlist end and trigger put_page on an emp...

EUVD-2026-59403

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix integer overflow in bpfmsgpopdata bounds check start and len are u32, so u64 last = start + len; evaluates start + len in 32-bit and wraps before storing it in last. The bounds check if start = offset + l || las...

CVE-2026-74256 bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix integer overflow in bpfmsgpopdata bounds check start and len are u32, so u64 last = start + len; evaluates start + len in 32-bit and wraps before storing it in last. The bounds check if start = offset + l || las...

CVE-2026-74256 bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix integer overflow in bpfmsgpopdata bounds check start and len are u32, so u64 last = start + len; evaluates start + len in 32-bit and wraps before storing it in last. The bounds check if start = offset + l || las...

CVE-2026-72382 ksmbd: reject undersized DACLs before parsing ACEs

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject undersized DACLs before parsing ACEs parsedacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression...

EUVD-2026-59281

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject undersized DACLs before parsing ACEs parsedacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression...

CVE-2026-72382

CVE-2026-72382 affects the Linux kernel ksmbd component. The issue is an unsigned underflow in parse_dacl() when computing the ACE count for a security descriptor, caused by subtracting sizeof(struct smb_acl) from a 16-bit DACL size. This can allow a malformed security descriptor to bypass the AC...

CVE-2026-72382 ksmbd: reject undersized DACLs before parsing ACEs

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject undersized DACLs before parsing ACEs parsedacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression...