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Sicherheitslücken in linux-realtime-6.8 · Seite 52

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-realtime-6.8: 759. Davon im KEV-Katalog: 0.

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  1. CVE-2026-97529

    Mittel · CVSS 6.8EPSS 0,22%Keine Korrektur veröffentlicht

    scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[] The FC BSG transport allocates job->request via memdup_user() using the exact user-supplied request_len. For FC_BSG_HST_VENDOR, fc_bsg_host_dispatch() only guarantees request_len covers msgcode and vendor_id; it does not account for the vendor_cmd[] flexible array. qla2xxx then reads the command selector vendor_cmd[0] and, in several sub-handlers, vendor_cmd[1]/[2] or structures overlaid on the vendor command area without verifying request_len. A caller holding CAP_SYS_RAWIO can submit a short request whos

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  2. CVE-2026-97528

    Hoch · CVSS 8.8EPSS 0,34%Keine Korrektur veröffentlicht

    scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error qla_nvme_xmt_ls_rsp() obtains uctx, which was linked into fcport->unsol_ctx_head by qla2xxx_process_purls_iocb() and is still linked when the NVMe transport calls back to transmit the LS response. On the error (out:) path the function frees uctx with kfree() but never removes it from the list. This leaves a freed node in fcport->unsol_ctx_head: the next list_add_tail() for that fcport writes through the freed node, and a subsequent list_del() can corrupt the list or panic. Unlink uctx with list_del() be

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  3. CVE-2026-97527

    Hoch · CVSS 8.8EPSS 0,34%Keine Korrektur veröffentlicht

    scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock The fcport->unsol_ctx_head list is modified from several contexts without a common lock. Entries are added in qla2xxx_process_purls_iocb() from the response queue ISR (under the qpair qp_lock), while they are removed from qla2xxx_process_purls_pkt() (DPC/purex worker), qla_nvme_xmt_ls_rsp() (NVMe-FC transport callback) and qla_nvme_release_lsrsp_cmd_kref() (SRB completion). The qpair qp_lock cannot serialize this per-fcport list since multiqueue adapters add entries through different qpairs, so a concurrent

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  4. CVE-2026-97524

    Hoch · CVSS 7.5EPSS 0,74%Keine Korrektur veröffentlicht

    mptcp: avoid unneeded actions on subflow reset

    In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid unneeded actions on subflow reset Once in a blue moon, the mptcp receive path can recursively call mptcp_data_ready() via state change under unlucky error conditions, and then try to hold the data lock again. Break the recursion loop explicitly checking for the exceptional condition. Add a new flag instead of using an existing one like 'closing', to exit early in subflow_state_change(), and explicitly flush the RX queue at reset time. This avoids unneeded processing to check for available data -- calling get_mapping_status() and more on a dying subflow -- bu

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  5. CVE-2026-97523

    Hoch · CVSS 7.5EPSS 0,73%Keine Korrektur veröffentlicht

    mptcp: close race between scheduler and state change

    In the Linux kernel, the following vulnerability has been resolved: mptcp: close race between scheduler and state change The mptcp scheduler may race with subflow sockets state change: data transmission on the selected socket may fail and a later release could try to use mss_now reset to 0 for a divide operation. Address the issue by explicitly checking for the critical scenario.

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  6. CVE-2026-97522

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    mptcp: fix bad accounting in __mptcp_subflow_push_pending()

    In the Linux kernel, the following vulnerability has been resolved: mptcp: fix bad accounting in __mptcp_subflow_push_pending() If __subflow_push_pending() errors out we should avoid updating the copied byte counters, to avoid mismatch push call later on.

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  7. CVE-2026-97521

    Nicht bewertetEPSS 0,15%Keine Korrektur veröffentlicht

    gfs2: fix quota init duplicate scan

    In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2_quota_init() checks for duplicate quota_change IDs while holding qd_lock and the quota hash bucket bitlock. That path used gfs2_qd_search_bucket(), which takes a lockref reference via lockref_get_not_dead(). On PREEMPT_RT this may sleep, which is not allowed under the bucket bitlock, triggering "sleeping function called from invalid context". Use a no-ref bucket lookup in this path, then continue duplicate handling without taking a lockref there. Refactor gfs2_qd_search_bucket() to build on top of the no-ref helper so lookup trave

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  8. CVE-2026-97520

    Hoch · CVSS 7.1EPSS 0,12%Keine Korrektur veröffentlicht

    gfs2: move quota_init qc iterator increment

    In the Linux kernel, the following vulnerability has been resolved: gfs2: move quota_init qc iterator increment Move qc++ from the loop body into the for-loop increment expression in gfs2_quota_init(). This keeps iterator progression explicit and avoids mixing pointer advance with duplicate-slot handling in the loop body.

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  9. CVE-2026-97519

    Nicht bewertetEPSS 0,14%Keine Korrektur veröffentlicht

    drm/xe: Fix null pointer dereference in devcoredump cleanup

    In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix null pointer dereference in devcoredump cleanup In xe_devcoredump_snapshot_free(), ss->gt may be NULL when the snapshot was never fully populated (e.g., when cleanup is triggered without a prior capture). Guard the xe_guc_capture_put_matched_nodes() call with IS_ERR_OR_NULL() to prevent a null dereference. In xe_devcoredump_free(), the deferred work is only queued when a coredump is captured, so guard cancel_work_sync() with a check on coredump->captured.

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  10. CVE-2026-97518

    Mittel · CVSS 4.8EPSS 0,16%Keine Korrektur veröffentlicht

    wifi: cfg80211: reject duplicate wiphy cipher suite entries

    In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: reject duplicate wiphy cipher suite entries Duplicate entries in wiphy->cipher_suites do not describe any additional capability, but cfg80211 currently accepts them and leaves individual consumers to deal with them. One such consumer is the WEXT compatibility code, which appends a WEP key length for each WEP cipher entry it sees. Repeated WEP entries can therefore overflow the fixed iw_range::encoding_size array returned by SIOCGIWRANGE. Reject duplicate cipher suite entries in wiphy_register() instead. This keeps the cipher suite invariant in one place an

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  11. CVE-2026-97517

    Mittel · CVSS 6.8EPSS 0,16%Keine Korrektur veröffentlicht

    wifi: nl80211: reject beacons with bad HE operation

    In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject beacons with bad HE operation The HE operation element not only needs to be longer than the fixed part, but also have an appropriate size for the variable part inside of it. Check this.

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  12. CVE-2026-97516

    Mittel · CVSS 5.7EPSS 0,16%Keine Korrektur veröffentlicht

    wifi: rtw88: Add NULL check for chip->edcca_th in rtw_fw_adaptivity_result()

    In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Add NULL check for chip->edcca_th in rtw_fw_adaptivity_result() It was recently reported that rtw_fw_adaptivity_result() in fw.c dereferences rtwdev->chip->edcca_th without a NULL check. The issue is that devices with the 8821CE chip don't define edcca_th in their chip info. As a result, when rtw_fw_adaptivity_result() tries to dereference it, the kernel triggers an oops. Add a NULL check for edcca_th before dereferencing it in rtw_fw_adaptivity_result() in fw.c. Placing the check at the function entry avoids logging any garbage values. This change does not a

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  13. CVE-2026-97515

    Mittel · CVSS 5.1EPSS 0,16%Keine Korrektur veröffentlicht

    i3c: master: svc: Prevent IRQ storm from false SLVSTART on NPCM845

    In the Linux kernel, the following vulnerability has been resolved: i3c: master: svc: Prevent IRQ storm from false SLVSTART on NPCM845 On NPCM845, when a target on the I3C bus gets stuck holding SDA low, the controller reports a false Master Request (MR) in-band interrupt event. The driver handles this by emitting a STOP condition to restore the bus. However, the hardware quirk SVC_I3C_QUIRK_FALSE_SLVSTART indicates that emitting a STOP condition may spuriously set the SLVSTART interrupt status bit. In the Master Request case, this creates a feedback loop: the STOP triggers a new SLVSTART event, the IRQ handler fires again, the controller

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  14. CVE-2026-97514

    Mittel · CVSS 6.7EPSS 0,15%Keine Korrektur veröffentlicht

    media: chips-media: wave5: Fix Reports from Kernel Lock Validator

    In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Fix Reports from Kernel Lock Validator handle_dynamic_resolution change requires that the state_lock be acquired based on the lockdep_assert_held. However, the handle_dynamic_resolution_change call in initialize_sequence does not properly obtain the lock before calling. Since the v4l2_ctrl_find and s_ctrl can sleep, they should not be called while a lock is already held. Store off the fbc_buf_count then properly update control once lock has been freed.

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  15. CVE-2026-97513

    Hoch · CVSS 7.8EPSS 0,12%Keine Korrektur veröffentlicht

    media: chips-media: wave5: Release m2m_ctx after Instance Removed from List

    In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Release m2m_ctx after Instance Removed from List Possible use after free if IRQ thread manages to obtain spinlock between m2m_ctx release and wave5_release function removing stream instance from list of active instances. The IRQ thread looks for the m2m_ctx which is freed so null pointer dereference occurs.

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  16. CVE-2026-97512

    Nicht bewertetEPSS 0,16%Keine Korrektur veröffentlicht

    spi: spi-qcom-qspi: Fix incomplete error handling in runtime PM

    In the Linux kernel, the following vulnerability has been resolved: spi: spi-qcom-qspi: Fix incomplete error handling in runtime PM The runtime PM functions had incomplete error handling that could leave the system in an inconsistent state. If any operation failed midway through suspend or resume, some resources would be left in the wrong state while others were already changed, leading to potential clock/power imbalances. Reorder the suspend/resume sequences to avoid brownout risk by ensuring the performance state is set appropriately before clocks are enabled and clocks are disabled before dropping the performance state. Fix by adding p

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  17. CVE-2026-97511

    Mittel · CVSS 6.9EPSS 0,14%Keine Korrektur veröffentlicht

    wifi: mac80211: avoid out-of-bounds access in monitor

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: avoid out-of-bounds access in monitor In NAN, we don't know on what band the frame will be sent. Therefore we set info->band to NUM_NL80211_BANDS. However, this leads to out-of-bound access in ieee80211_add_tx_radiotap_header when we try to access the sbands array. Fix it by not accessing the array if the band is NUM_NL80211_BANDS. This means that we will not report rate info for legacy rate in NAN. But nobody really cares about it.

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  18. CVE-2026-97510

    Nicht bewertetEPSS 0,16%Keine Korrektur veröffentlicht

    thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response()

    In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response() If tb_cfg_request() fails setting up the request (for example the control channel is shut down already) it returns an error without calling the callback. To avoid leaking that memory, call tb_cfg_request_put() if tb_cfg_request() fails.

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  19. CVE-2026-97509

    Hoch · CVSS 8.8EPSS 0,24%Keine Korrektur veröffentlicht

    thunderbolt: Keep XDomain reference during the lifetime of a service

    In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Keep XDomain reference during the lifetime of a service This is needed because we release the service ID in tb_service_release() and the ID array is owned by the parent XDomain.

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  20. CVE-2026-97508

    Hoch · CVSS 7.5EPSS 0,22%Keine Korrektur veröffentlicht

    thunderbolt: Set tb->root_switch to NULL when domain is stopped

    In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Set tb->root_switch to NULL when domain is stopped Similarly what we do with the firmware connection manager. This makes tb_xdp_handle_request() return error to the remote host. However, we need to make sure we keep the uuid alive so that we can reply until the whole domain is released.

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