Alertas de Seguridad de la Información

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98112] In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix listener task lifeti…

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix listener task lifetime on netdev events The listener thread exits when its listening socket is shutdown. The netdevice notifier shuts down the socket before calling kthread_stop(), so the task_struct can be freed before kthread_stop() gets its reference. Create the listener in a stopped state and hold an extra task_s…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98115] In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely drain sessions du…

In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely drain sessions during logoff SMB3 multichannel allows requests for one session to run on multiple connections. Wait for all channels bound to a session before freeing shared session objects. A deferred byte-range lock remains counted as a running request and only wakes when its file closes. Wake blocked locks duri…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98116] In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Serialize PCM mmap w…

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF snd_pcm_hw_params() and snd_pcm_hw_free() guard buffer reallocation with an mmap_count check performed under the PCM stream lock, but the lock is released long before the buffer is actually freed: snd_pcm_sync_stop(), constraint refinement and do_free_pages()…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98108] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan mode…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan mode for LE_CONN_REQ + EXT_FLOWCTL pchan l2cap_new_connection() sets default value of channel mode to match the parent channel. l2cap_le_connect_req() left this at the default, and created L2CAP_MODE_EXT_FLOWCTL channels if listening pchan has that mode. This causes FLAG_DEFER_SETUP channels to reply…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98096] In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: restore network heade…

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: restore network header before routing and forwarding ipv6_srh_rcv() runs with skb->data at the Segment Routing Header (SRH) while skb_network_header() points at the IPv6 header. When segments_left > 0, ipv6_srh_rcv() previously restored the skb->data position by pushing sizeof(struct ipv6hdr), assuming the SRH immedia…

nvdaltovulnerabilidad CVSS 7.4 NVD

C Informativo vulnerabilidad

25/09/2026

[CVE-2026-98084] In the Linux kernel, the following vulnerability has been resolved: bpf: backtracking shouldn't cle…

In the Linux kernel, the following vulnerability has been resolved: bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks When processing calls to bpf_loop() verifier marks R1 (and R4) as precise. R1 tracks loop iterations number and because of the 'callback_depth < R1' mechanics in check_helper_call() must be marked precise. However, precision propagation for R1 was broken, when bpf…

check-pointcheckpointbajo CVSS 0.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98083] In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction use-afte…

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction use-after-free in raid stripe insertion If allocation of a RAID stripe extent fails, btrfs_insert_one_raid_extent() aborts and ends the transaction before returning -ENOMEM. btrfs_finish_one_ordered(), the production caller through btrfs_insert_raid_extent(), still owns the transaction handle. It handles …

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98069] In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire the fastpath l…

In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire the fastpath locks in rds_conn_shutdown() rds_conn_shutdown() quiesces the transmit and receive-refill paths by waiting for RDS_IN_XMIT and RDS_RECV_REFILL to be sampled clear, and then runs the transport shutdown and rds_conn_path_reset(). Sampling the bits clear is not the same as owning them: the moment afte…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98070] In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire RDS_IN_XMIT in…

In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks() rds_tcp_reset_callbacks() quiesces the transmit path by setting the path state to RDS_CONN_RESETTING and then waiting for RDS_IN_XMIT to be sampled clear before swapping the underlying socket and calling rds_send_path_reset(). Sampling the bit clear is not the same as ow…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98073] In the Linux kernel, the following vulnerability has been resolved: net: Remove conflicting altname…

In the Linux kernel, the following vulnerability has been resolved: net: Remove conflicting altnames for dying netns in __dev_change_net_namespace(). syzbot reported the warning in cfg80211_pernet_exit(). [0] The repro does the following: 1. create two device in root netns and non-root netns 2. assign the same altname for the two devices 3. remove the non-root netns Since commit 7663d52…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98052] In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: clear txcb->last b…

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: clear txcb->last before writing each descriptor bcmasp_xmit() only wrote txcb->last = true for the final fragment of an SKB; non-final fragments left the field untouched. If a descriptor slot was reused while it still held a stale true from a previous SKB (possible when tx_spb_ring_full() underreported fullness), b…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98056] In the Linux kernel, the following vulnerability has been resolved: nvme: remove stale namespaces b…

In the Linux kernel, the following vulnerability has been resolved: nvme: remove stale namespaces by NSID range during scan nvme_scan_ns_list() drops the stale namespaces in each gap in the reported NSID list one NSID at a time. Every iteration calls nvme_find_get_ns() to look the namespace up and removes it if it is present. The loop runs once per NSID in the gap rather than once per namespace …

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98050] In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_ptp: Fix napi_g…

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_ptp: Fix napi_gro_receive() call from GC workqueue context Currently mlxsw_sp1_ptp_ht_gc_collect() is run from the PTP garbage-collection workqueue, rather than the NAPI poll context. For any unmatched PTP entries carrying an SKB, it calls mlxsw_sp1_ptp_unmatched_finish() -> mlxsw_sp1_ptp_packet_finish(). For ing…

nvdaltovulnerabilidad CVSS 7.5 NVD

C Informativo vulnerabilidad

25/09/2026

[CVE-2026-98034] In the Linux kernel, the following vulnerability has been resolved: bpf: Mark NULL kptr stores prec…

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark NULL kptr stores precise check_map_kptr_access() permits a scalar store into an untrusted kptr field only when the register is known to contain zero. Unlike other verifier checks whose outcome depends on a scalar value, it does not mark that register precise. A state checkpoint reached with an imprecise zero can there…

check-pointcheckpointbajo CVSS 0.0 NVD

C Informativo vulnerabilidad

25/09/2026

[CVE-2026-98040] In the Linux kernel, the following vulnerability has been resolved: bpf: Mark the zero register pre…

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark the zero register precise for a register-form NULL check check_cond_jmp_op() accepts "if rA rB" as a NULL check for a nullable pointer rA when rB is a scalar known to be zero, lifts PTR_MAYBE_NULL from rA in the corresponding branch and does not mark rB precise. Consider the following program: r0 = bpf_get_pran…

check-pointcheckpointbajo CVSS 0.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98041] In the Linux kernel, the following vulnerability has been resolved: bpf: Don't predict JMP32 pointe…

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't predict JMP32 pointer vs zero comparisons Consider the following program: r1 = map_value; /* low 32 bits are zero at runtime */ r6 = 0xdead000000000000; if w1 != 0 goto l1; l0: r1 += r6; r2 = *(u64 *)(r1 + 0); exit; l1: r6 = 0; goto l0; At the moment is_br…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98027] In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: bound the …

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: bound the policy rule dump by the caller's buffer size mv88e6xxx_get_rxnfc() uses rxnfc->rule_cnt as the write index while dumping the policy IDR, clobbering the input value before it has been looked at. That input is the number of entries the caller had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADM…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98029] In the Linux kernel, the following vulnerability has been resolved: eth: nfp: bound the ntuple rule…

In the Linux kernel, the following vulnerability has been resolved: eth: nfp: bound the ntuple rule dump by the caller's buffer size nfp_net_get_fs_loc() dumps every entry of nn->fs.list into rule_locs[] without consulting cmd->rule_cnt, which is how many entries the caller had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN and the ioctl sizes the buffer from the rule_cnt userspace pas…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

25/09/2026

[CVE-2026-98030] In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: bound the CF…

In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: bound the CFP rule dump by the caller's buffer size bcm_sf2_cfp_rule_get_all() walks the whole cfp.unique bitmap into rule_locs[] without consulting nfc->rule_cnt, which is how many entries the caller had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN and the ioctl sizes the buffer from the rule_cnt …

nvdaltovulnerabilidad CVSS 7.0 NVD

C Informativo vulnerabilidad

25/09/2026

[CVE-2026-98019] In the Linux kernel, the following vulnerability has been resolved: bpf: mark a NULL call argument …

In the Linux kernel, the following vulnerability has been resolved: bpf: mark a NULL call argument precise check_func_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. check_helper_call() enforces second parameter of the bpf_get_local_storage() to be…

check-pointcheckpointbajo CVSS 0.0 NVD