Alertas de Seguridad de la Información

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-80554] In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Limit the number…

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Limit the number of channel program segments The processing of channel programs, and the CCWs within them, is done recursively. As such, there is an arbitrary (but not architectural) limit to the number of CCWs that can exist in a single channel program. The vfio-ccw logic breaks these channel programs into segme…

nvdcriticovulnerabilidad CVSS 9.3 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80538] In the Linux kernel, the following vulnerability has been resolved: xfs: propagate errors from xfs_…

In the Linux kernel, the following vulnerability has been resolved: xfs: propagate errors from xfs_rtginode_load xfs_rtginode_ensure() treats every xfs_rtginode_load() error other than -ENOENT as success. This can leave the realtime group inode unset after an I/O, allocation, or corruption error. Growfs then continues as though the inode had been loaded. Only -ENOENT means that the inode need…

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80540] In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix UVD decode imag…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix UVD decode image min size calculation This needs to use pitch instead of width. Also reject pitch over 4096 to avoid overflow. (cherry picked from commit b41c8cb12e202b220353332ab87dc01a11f69304)

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80541] In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate GEM_CREATE…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate GEM_CREATE domain combinations AMDGPU_GEM_CREATE checked domain bits against AMDGPU_GEM_DOMAIN_MASK, but did not validate domain combinations. Userspace could combine CPU|GTT|VRAM with DOORBELL, GDS, GWS, or OA, making amdgpu_bo_placement_from_domain() exceed AMDGPU_BO_MAX_PLACEMENTS and hit BUG_ON(). Allow…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80544] In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve EP11 CPRB …

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve EP11 CPRB domain handling with ASN.1 parsing The zcrypt_msgtype6_send_ep11_cprb() function uses fragile struct overlays to access and modify the domain field in the EP11 CPRB payload, creating maintainability and security concerns: 1. Struct overlay approach (pld_hdr) assumes fixed payload structure and d…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80545] In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve EP11 CPRB …

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve EP11 CPRB length and overflow checks The xcrb_msg_to_type6_ep11cprb_msgx() function lacks proper input validation, creating security vulnerabilities: 1. Missing minimum size validation: The ep11_cprb structure and subsequent payload fields (pld_tag, pld_lenfmt) are copied from userspace without verifyi…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80546] In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve CCA CPRB l…

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve CCA CPRB length and overflow checks The xcrb_msg_to_type6cprb_msgx() function lacks proper input validation, creating security vulnerabilities: 1. Integer overflow after CEIL4 alignment: Signed int variables could overflow during 4-byte boundary alignment, causing undersized buffer allocations or incor…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80531] In the Linux kernel, the following vulnerability has been resolved: xfs: avoid UAF on sc->tempip in…

In the Linux kernel, the following vulnerability has been resolved: xfs: avoid UAF on sc->tempip in xrep_tempfile_create LOLLM noticed a potential UAF if the tempfile creation code fails after it set sc->tempip. Fix that.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80536] In the Linux kernel, the following vulnerability has been resolved: xfs: bounds-check buffer log it…

In the Linux kernel, the following vulnerability has been resolved: xfs: bounds-check buffer log item's dirty bitmap xlog_recover_do_reg_buffer() replays each dirty region described by a buffer log item's bitmap into the buffer read for that item: memcpy(xfs_buf_offset(bp, (uint)bit ri_buf[i].iov_base, nbits

nvdaltovulnerabilidad CVSS 8.4 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80537] In the Linux kernel, the following vulnerability has been resolved: xfs: fix off-by-one in rtrefcou…

In the Linux kernel, the following vulnerability has been resolved: xfs: fix off-by-one in rtrefcount btree root level validation xfs_rtrefcountbt_compute_maxlevels() sets mp->m_rtrefc_maxlevels = min(d_maxlevels, r_maxlevels) + 1; where the trailing "+ 1" already accounts for the inode-root level, so the deepest valid on-disk root level is m_rtrefc_maxlevels - 1 and a cursor must satisfy bc_…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80526] In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2562: Validate values …

In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2562: Validate values for volume writes tas2562_volume_control_put() does not do any validation of the control value written by userspace, it uses it to look up a value in a fixed size array which can easily be overflowed and then writes whatever value it gets back to the device. Add validation that we are loading a va…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80527] In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging __ceph_get_ca…

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging __ceph_get_caps() with stale mds_wanted A reader can hang forever in __ceph_get_caps() when the client no longer holds `FILE_RD`, but local cap state still says that the capability is already wanted (via `mds_wanted`). One way to trigger this is through MDS cap revocation. If another client performs a conflic…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-80528] In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while us…

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current->journal_info handle_reply() stores a `ceph_mds_request` pointer in `current->journal_info` while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct reclaim and prune dentries from another filesystem. If this dirties an ext4 inode, ext…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80530] In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchange-range reflink…

In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN When exchanging two full-file ranges, xmi_can_exchange_reflink_flags() can move the reflink inode flag from the file that currently has it to the other file, as long as exactly one side is marked. This assumes that the file contents, and therefore all shared …

nvdaltovulnerabilidad CVSS 7.1 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-80519] In the Linux kernel, the following vulnerability has been resolved: ovpn: finish crypto callback cl…

In the Linux kernel, the following vulnerability has been resolved: ovpn: finish crypto callback cleanup before peer release Crypto completion callbacks hold both key-slot and peer references. The peer reference pins the netdev, and dropping the last peer reference can let netdev unregistration and module removal make progress. Do not release that peer reference before the callback has finished…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80520] In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when…

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the kill path may be asked to remove a key that is not present. Read each slot once while holding the…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80521] In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in un…

In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in unix_del_edge(). Kyle Zeng reported that GC could free a dead SCC partially. The scenario is as follows: 1) Create two SCCs: X -. A B ^--' 2) Run the following concurrently: 2-1) send() sk-B to sk-B from sk-X 2-2) close() both A and B At 2-1), there is a sm…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80522] In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->crypt…

In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() Perform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way it is done in tegra_ccm_crypt_init(). The current formulae may lead to a crash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize remains zero. Then a decrypt oper…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80523] In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: k3: set hdma clo…

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: k3: set hdma clock as critical HDMA clock is responsible for the internal TCM access path of X100 RISC-V core, so set the clock flag as critical to prevent it from being shut off, otherwise the Linux system will hang, for example in the case of a vector instruction access generates a page fault.

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74750] In the Linux kernel, the following vulnerability has been resolved: ovpn: defer key slot crypto fre…

In the Linux kernel, the following vulnerability has been resolved: ovpn: defer key slot crypto freeing to workqueue Key slots are released through a kref and the existing release path frees the AEAD transforms from an RCU callback. That is not safe for all crypto implementations: crypto_free_aead can sleep, for example when an async or hardware implementation has teardown work to complete. Use…

nvdaltovulnerabilidad CVSS 7.5 NVD