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Vulnerabilidades de linux-riscv-6.8 · Página 173

Vulnerabilidades publicadas para linux-riscv-6.8 en los últimos 30 días: 798. Incluidas en el catálogo KEV: 0.

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Vulnerabilidades: 9859

  1. CVE-2026-68130

    Sin evaluarEPSS 0,22%Sin corrección publicada

    ksmbd: defer destroy_previous_session() until after NTLM authentication

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroy_previous_session() until after NTLM authentication In ntlm_authenticate(), destroy_previous_session() is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response is validated. An authenticated attacker can set the NTLM blob username to match a victim account and set PreviousSessionId to the victim's session ID; destroy_previous_session() destroys the victim's session while ksmbd_decode_ntlmssp_auth_blob() subsequently rejects the request with -EPERM. Move destroy_previous_session() and the prev_i

    linux-riscv-6.8Sistemas operativos
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  2. CVE-2026-68129

    Alta · CVSS 7.5EPSS 0,51%Sin corrección publicada

    gve: fix Rx queue stall on alloc failure

    In the Linux kernel, the following vulnerability has been resolved: gve: fix Rx queue stall on alloc failure When the system is under extreme memory pressure, page allocations can fail during the Rx buffer refill loop. If the number of buffers posted to hardware falls below a critical low threshold and the refill loop exits due to allocation failures, the queue can stall: 1. The device drops incoming packets because there are no descriptors. 2. Since no packets are processed, no Rx completions are generated. 3. Because no completions occur, NAPI is never scheduled, preventing the refill loop from running again even after memory is freed

    linux-riscv-6.8Sistemas operativos
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  3. CVE-2026-68127

    Crítica · CVSS 9.8EPSS 0,54%Sin corrección publicada

    ila: reload IPv6 header after pskb_may_pull in checksum adjust

    In the Linux kernel, the following vulnerability has been resolved: ila: reload IPv6 header after pskb_may_pull in checksum adjust ila_csum_adjust_transport() caches ip6h = ipv6_hdr(skb) before calling pskb_may_pull(). On a non-linear skb whose transport header sits in a page fragment, pskb_may_pull() can call __pskb_pull_tail() / pskb_expand_head() and free the old skb head, leaving ip6h dangling; the following get_csum_diff(ip6h, p) then reads freed memory. ila_update_ipv6_locator() uses ip6h (and the iaddr derived from it) again after the csum-adjust call and additionally writes the new locator through that pointer. Impact: a remote IPv

    linux-riscv-6.8Sistemas operativos
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  4. CVE-2026-68126

    Sin evaluarEPSS 0,18%Sin corrección publicada

    mac802154: hold an interface reference across the scan worker

    In the Linux kernel, the following vulnerability has been resolved: mac802154: hold an interface reference across the scan worker mac802154_scan_worker() captures the scanning sub-interface under RCU and then keeps dereferencing sdata->dev after rcu_read_unlock() and outside the rtnl -- in the failure traces, in mac802154_transmit_beacon_req() (skb->dev = sdata->dev), and in the end_scan cleanup. Nothing keeps that netdev alive across the worker iteration. A concurrent DEL_INTERFACE or PHY removal can unregister the interface once the worker drops the rtnl between its two drv_set_channel() sections. unregister_netdevice() frees the netdev

    linux-riscv-6.8Sistemas operativos
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  5. CVE-2026-68125

    Alta · CVSS 8.8EPSS 0,32%Sin corrección publicada

    mac802154: llsec: reject frames shorter than the authentication tag

    In the Linux kernel, the following vulnerability has been resolved: mac802154: llsec: reject frames shorter than the authentication tag llsec_do_decrypt_auth() computes the associated-data length for the AEAD request as assoclen += datalen - authlen; where datalen is the number of bytes after the MAC header and authlen (4, 8 or 16) is the length of the authentication tag. Nothing verifies that the frame actually carries at least authlen payload bytes. A secured frame whose payload is shorter than the tag makes datalen - authlen negative; assoclen is then passed to aead_request_set_ad() as an unsigned value close to 4 GiB, so crypto_aead_

    linux-riscv-6.8Sistemas operativos
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  6. CVE-2026-68124

    Crítica · CVSS 9.6EPSS 0,34%Sin corrección publicada

    mctp: serial: handle zero-length frames to prevent rx buffer overflow

    In the Linux kernel, the following vulnerability has been resolved: mctp: serial: handle zero-length frames to prevent rx buffer overflow The MCTP serial receive state machine reads a frame length byte in mctp_serial_push_header() case 2 and validates it upper-bound-only: if (c > MCTP_SERIAL_FRAME_MTU) { dev->rxstate = STATE_ERR; } else { dev->rxlen = c; dev->rxpos = 0; dev->rxstate = STATE_DATA; ... } A length of zero passes this check, so rxlen is set to 0 and the state machine advances to STATE_DATA. In mctp_serial_push() STATE_DATA, the incoming byte is stored and rxpos incremented before the terminator is dev->rxbuf[de

    linux-riscv-6.8Sistemas operativos
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  7. CVE-2026-68123

    Crítica · CVSS 9.8EPSS 0,55%Sin corrección publicada

    openvswitch: fix GSO userspace truncation underflow

    In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix GSO userspace truncation underflow OVS_ACTION_ATTR_TRUNC currently stores a delta from the original skb length in OVS_CB(skb)->cutlen. When a later userspace action segments a GSO skb, queue_gso_packets() reuses that delta for each smaller segment. A segment can then reach queue_userspace_packet() with cutlen greater than skb->len, underflowing the length passed to skb_zerocopy(). Store the maximum preserved length instead and bound each consumer against the current skb length. Use U32_MAX as the no-truncation sentinel so the value remains valid if skb geo

    linux-riscv-6.8Sistemas operativos
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  8. CVE-2026-68121

    Alta · CVSS 7.8EPSS 0,37%Código de explotación públicoSin corrección publicada

    pppoe: reload header pointer after dev_hard_header()

    In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after dev_hard_header() pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team's delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head. Reload the PPPoE header through the skb's network-header offset af

    linux-riscv-6.8Sistemas operativos
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  9. CVE-2026-68119

    Alta · CVSS 7.5EPSS 0,37%Sin corrección publicada

    tcp: initialize standalone TCP-AO response padding

    In the Linux kernel, the following vulnerability has been resolved: tcp: initialize standalone TCP-AO response padding tcp_v4_send_ack() and tcp_v6_send_response() construct standalone TCP responses with TCP-AO options. The option length carries the actual MAC length, but the TCP header length includes the option rounded up to a four-byte boundary. tcp_ao_hash_hdr() writes the MAC only. Thus, when the MAC length is not four-byte aligned, the one to three bytes after the MAC are left uninitialized and may be transmitted. For the normal TCP-AO hashing mode, those bytes also have to be initialized before computing the MAC. Initialize only

    linux-riscv-6.8Sistemas operativos
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  10. CVE-2026-68118

    Alta · CVSS 8.2EPSS 0,4%Sin corrección publicada

    tcp: challenge ACK for non-exact RST in SYN-RECEIVED

    In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcp_check_req() accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request instead of eliciting a challenge ACK. RFC 9293 section 3.10.7.4 applies the RFC 5961 reset check in SYN-RECEIVED: an exact RST resets the connection, while a non-exact in-window RST must trigger a challenge ACK and be dropped. Apply that check before the ACK-field validation, following the RFC sequence-number, RST, then ACK processing order.

    linux-riscv-6.8Sistemas operativos
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  11. CVE-2026-68117

    Crítica · CVSS 9.8EPSS 0,53%Sin corrección publicada

    tipc: clear sock->sk on the failed-insert path in tipc_sk_create()

    In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() When tipc_sk_create() fails to insert the new socket (tipc_sk_insert() returns non-zero), its error path frees the sk with sk_free() but leaves sock->sk pointing at the freed object: if (tipc_sk_insert(tsk)) { sk_free(sk); pr_warn("Socket create failed; port number exhausted\n"); return -EINVAL; } This is harmless for plain socket(): the syscall layer clears sock->ops before releasing, so tipc_release() is never called. It is not harmless on the accept() path. tipc_accept() creates the pre-allocate

    linux-riscv-6.8Sistemas operativos
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  12. CVE-2026-68116

    Alta · CVSS 7.9EPSS 0,12%Sin corrección publicada

    vxlan: mdb: Fix source list corruption on a failed replace

    In the Linux kernel, the following vulnerability has been resolved: vxlan: mdb: Fix source list corruption on a failed replace When replacing the source list of an MDB remote entry, all existing sources are first marked for deletion and vxlan_mdb_remote_srcs_add() is then called to add the new source list. Sources present in the new list have their deletion mark cleared, and any sources left marked afterwards are removed. If vxlan_mdb_remote_srcs_add() fails partway through, its error path deletes all entries on the remote's source list. That rollback is only correct for its other caller, vxlan_mdb_remote_add(), where the remote was just a

    linux-riscv-6.8Sistemas operativos
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  13. CVE-2026-68115

    Sin evaluarEPSS 0,18%Sin corrección publicada

    drm/amdgpu/gfx10: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx10: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit ac6f00beb658239bced4aaed9efbb04a35348d48)

    linux-riscv-6.8Sistemas operativos
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  14. CVE-2026-68114

    Media · CVSS 6.8EPSS 0,15%Sin corrección publicada

    drm/amdgpu/gfx12.1: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx12.1: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit e4d99e04b2e9b13b97d3b17804c735f62689db23)

    linux-riscv-6.8Sistemas operativos
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  15. CVE-2026-68113

    Media · CVSS 6.8EPSS 0,17%Sin corrección publicada

    drm/amdgpu/gfx12: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx12: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit f952076f76d62f783e8ba4995a7c400d39354ccf)

    linux-riscv-6.8Sistemas operativos
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  16. CVE-2026-68112

    Media · CVSS 6.8EPSS 0,17%Sin corrección publicada

    drm/amdgpu/gfx9.4.3: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx9.4.3: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit 5676593d08998d7a6d9e2d51d6b54b3820e3755c)

    linux-riscv-6.8Sistemas operativos
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  17. CVE-2026-68111

    Sin evaluarEPSS 0,18%Sin corrección publicada

    drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx9: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit b71604f8685b0eba07866f4e8dc30f93e1931054)

    linux-riscv-6.8Sistemas operativos
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  18. CVE-2026-68110

    Media · CVSS 6.8EPSS 0,17%Sin corrección publicada

    drm/amdgpu/sdma4.4.2: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/sdma4.4.2: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit fa4f86a148271e325e95287630a3a15a9cd35fdc)

    linux-riscv-6.8Sistemas operativos
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  19. CVE-2026-68109

    Media · CVSS 6.8EPSS 0,15%Sin corrección publicada

    drm/amdgpu/sdma7.1: replace BUG_ON() with WARN_ON()

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/sdma7.1: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit c4f230b51cf2d3e7e8b1c800331f3dbed2a9e3f5)

    linux-riscv-6.8Sistemas operativos
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  20. CVE-2026-68108

    Alta · CVSS 8.8EPSS 0,14%Sin corrección publicada

    drm/amdgpu/vce: fix integer overflow in image size

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: fix integer overflow in image size Fix a security vulnerability where malicious VCE command streams with oversized dimensions (e.g. 65536×65536) cause 32-bit integer overflow, wrapping the calculated buffer size to 0. This bypasses validation and allows GPU firmware to perform out-of-bound memory access. The fix uses 64-bit arithmetic to detect overflow and rejects invalid dimensions before they reach the hardware. V2: remove redundant check V3: modify max height value V4: remove size64 (cherry picked from commit cbe408dba581755ad1279a487ec786d8927d778d)

    linux-riscv-6.8Sistemas operativos
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