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Sicherheitslücken in linux-gcp-5.4 · Seite 102

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-gcp-5.4: 466. Davon im KEV-Katalog: 0.

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  1. CVE-2026-68125

    Hoch · CVSS 8.8EPSS 0,32%Keine Korrektur veröffentlicht

    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_

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  2. CVE-2026-68123

    Kritisch · CVSS 9.8EPSS 0,55%Keine Korrektur veröffentlicht

    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

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  3. CVE-2026-68121

    Hoch · CVSS 7.8EPSS 0,37%Öffentlicher ExploitKeine Korrektur veröffentlicht

    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

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  4. CVE-2026-68118

    Hoch · CVSS 8.2EPSS 0,4%Keine Korrektur veröffentlicht

    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.

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  5. CVE-2026-68117

    Kritisch · CVSS 9.8EPSS 0,53%Keine Korrektur veröffentlicht

    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

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  6. CVE-2026-68115

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    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)

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  7. CVE-2026-68114

    Mittel · CVSS 6.8EPSS 0,15%Keine Korrektur veröffentlicht

    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)

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  8. CVE-2026-68113

    Mittel · CVSS 6.8EPSS 0,17%Keine Korrektur veröffentlicht

    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)

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  9. CVE-2026-68112

    Mittel · CVSS 6.8EPSS 0,17%Keine Korrektur veröffentlicht

    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)

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  10. CVE-2026-68111

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    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)

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  11. CVE-2026-68110

    Mittel · CVSS 6.8EPSS 0,17%Keine Korrektur veröffentlicht

    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)

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  12. CVE-2026-68109

    Mittel · CVSS 6.8EPSS 0,15%Keine Korrektur veröffentlicht

    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)

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  13. CVE-2026-68108

    Hoch · CVSS 8.8EPSS 0,14%Keine Korrektur veröffentlicht

    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)

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  14. CVE-2026-68107

    Hoch · CVSS 8.8EPSS 0,1%Keine Korrektur veröffentlicht

    drm/amdgpu/vcn4: avoid rereading IB param length

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)

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  15. CVE-2026-68106

    Hoch · CVSS 7.8EPSS 0,13%Keine Korrektur veröffentlicht

    drm/amdgpu: fix division by zero with invalid uvd dimensions

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix division by zero with invalid uvd dimensions When width or height is less than 16, width_in_mb or height_in_mb becomes 0, leading to fs_in_mb being 0. This causes a division by zero when calculating num_dpb_buffer in H264 and H264 Perf decode paths. Add validation to reject frames with width < 16 or height < 16 before performing any calculations that depend on these values. V2: Format change - move up all vaiable definitions. V3: Use warn_once to avoid spam. (cherry picked from commit 3e41d26c70b0a459d041cc19482a226c4b7423cb)

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  16. CVE-2026-68105

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    drm/amdgpu: Fix kernel panic during driver load failure

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix kernel panic during driver load failure Avoid kernel panic if MES init fails during driver load. The KIQ ring is falsely marked as ready as ASICs that use MES, KIQ is owned by MES. BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:gfx_v12_1_wait_reg_mem+0x5a/0x1f0 [amdgpu] Call Trace: gfx_v12_1_ring_emit_reg_write_reg_wait+0x1f/0x30 [amdgpu] amdgpu_gmc_fw_reg_write_reg_wait+0xb2/0x190 [amdgpu] amdgpu_gmc_flush_gpu_tlb+0x1cc/0x230 [amdgpu] amdgpu_gart_invalidate_tlb+0x81/0xa0 [amdgpu] amdgpu_gart_unbind+0x72/0x90 [amdgpu] amdgpu

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  17. CVE-2026-68104

    Hoch · CVSS 7.8EPSS 0,13%Keine Korrektur veröffentlicht

    drm/amdgpu: invoke pm_genpd_remove() before freeing genpd

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: invoke pm_genpd_remove() before freeing genpd Call pm_genpd_remove() to unregister from global list prior to releasing acp_genpd memory, and clear the pointer after free. (cherry picked from commit cd8650d7a91ee8b768e202354672553faa5cc1f2)

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  18. CVE-2026-68103

    Hoch · CVSS 7.1EPSS 0,15%Keine Korrektur veröffentlicht

    drm/amdgpu: reject mapping a reserved doorbell to a new queue

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: reject mapping a reserved doorbell to a new queue When creating an user-queue, the user space provides a doorbell BO handle and an offset within the bo to obtain a doorbell. However current implementation using xa_store_irq() to store a doorbell, which allows a later queue created with the same BO and offset parameters to overwrite an existing queue and doorbell mapping. This can cause problems like misrouting fence IRQ processing to a wrong queue, and mislead the cleanup process of one queue erasing the mapping of another queue. This commit fixes this issue

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  19. CVE-2026-68100

    Hoch · CVSS 8.1EPSS 0,43%Keine Korrektur veröffentlicht

    ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl set_ntacl_dacl() copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.num_subauth. The ACE bytes (including an unchecked num_subauth) originate from an authenticated SMB2_SET_INFO(SecInfo=DACL) that is stored raw via ksmbd_vfs_set_sd_xattr(); parse_dacl() rejects a bad ACE with `break` rather than an error, so parse_sec_desc() still returns success and the malformed SD reaches the xattr intact. On a subsequent SMB2_QUERY_INFO(SecInfo=DACL)

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  20. CVE-2026-68098

    Hoch · CVSS 8.8EPSS 0,45%Keine Korrektur veröffentlicht

    ksmbd: bound DACL dedup walk to copied ACEs

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: bound DACL dedup walk to copied ACEs set_ntacl_dacl() can stop copying ACEs before consuming the full input DACL when size accounting overflows. When that happens, num_aces reflects only the ACEs that were actually copied into the output DACL, but set_posix_acl_entries_dacl() still receives nt_num_aces and uses it to walk the existing ACE array during dedup. That makes the dedup walk scan past the copied ACE array and inspect buffer tail that does not contain valid ACEs. Split the two meanings currently carried by the NT ACE count. Pass the number of copied NT ACE

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