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Sicherheitslücken in linux-oracle-5.4 · Seite 147

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-oracle-5.4: 519. Davon im KEV-Katalog: 0.

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  1. CVE-2026-43180

    Hoch · CVSS 7.8EPSS 0,1%Keine Korrektur veröffentlicht

    net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode

    In the Linux kernel, the following vulnerability has been resolved: net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode kaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls netif_stop_queue() and netif_wake_queue(). These are TX queue flow control functions unrelated to RX multicast configuration. The premature netif_wake_queue() can re-enable TX while tx_urb is still in-flight, leading to a double usb_submit_urb() on the same URB: kaweth_start_xmit() { netif_stop_queue(); usb_submit_urb(kaweth->tx_urb); } kaweth_set_rx_mode() { netif_stop_queue(); netif_wake_queue(); // wakes TX queue be

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  2. CVE-2026-43171

    Mittel · CVSS 5.5EPSS 0,12%Keine Korrektur veröffentlicht

    EFI/CPER: don't dump the entire memory region

    In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region The current logic at cper_print_fw_err() doesn't check if the error record length is big enough to handle offset. On a bad firmware, if the ofset is above the actual record, length -= offset will underflow, making it dump the entire memory. The end result can be: - the logic taking a lot of time dumping large regions of memory; - data disclosure due to the memory dumps; - an OOPS, if it tries to dump an unmapped memory region. Fix it by checking if the section length is too small before doing a hex dump. [ rjw: Subject tw

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  3. CVE-2026-43168

    Mittel · CVSS 5.5EPSS 0,12%Keine Korrektur veröffentlicht

    ocfs2: fix reflink preserve cleanup issue

    In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix reflink preserve cleanup issue commit c06c303832ec ("ocfs2: fix xattr array entry __counted_by error") doesn't handle all cases and the cleanup job for preserved xattr entries still has bug: - the 'last' pointer should be shifted by one unit after cleanup an array entry. - current code logic doesn't cleanup the first entry when xh_count is 1. Note, commit c06c303832ec is also a bug fix for 0fe9b66c65f3.

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  4. CVE-2026-43167

    Mittel · CVSS 6.7EPSS 0,12%Keine Korrektur veröffentlicht

    xfrm: always flush state and policy upon NETDEV_UNREGISTER event

    In the Linux kernel, the following vulnerability has been resolved: xfrm: always flush state and policy upon NETDEV_UNREGISTER event syzbot is reporting that "struct xfrm_state" refcount is leaking. unregister_netdevice: waiting for netdevsim0 to become free. Usage count = 2 ref_tracker: netdev@ffff888052f24618 has 1/1 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] xfrm_dev_state_add+0x3a5/0x1080 net/xfrm/xfrm_device.c:316 xfrm_state_construct net/xfrm/xfrm_user.c:986 [inline] xfrm_add_sa+0x34ff/0x5fa0 net/xfrm/xfrm_

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  5. CVE-2026-43163

    Mittel · CVSS 4.7EPSS 0,09%Keine Korrektur veröffentlicht

    md/bitmap: fix GPF in write_page caused by resize race

    In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod] This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over `bitmap->storage.filemap` without locking, while the resize path frees that storage via md_bitmap_file_unmap(). `quiesce()` does not stop the md thread, allowing concurrent access to freed pages. Fix by holding `mddev->bitmap_info.mutex` during the bitmap update.

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  6. CVE-2026-43159

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    staging: rtl8723bs: fix null dereference in find_network

    In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix null dereference in find_network The variable pwlan has the possibility of being NULL when passed into rtw_free_network_nolock() which would later dereference the variable.

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  7. CVE-2026-43158

    Hoch · CVSS 8.8EPSS 0,47%Keine Korrektur veröffentlicht

    xfs: fix freemap adjustments when adding xattrs to leaf blocks

    In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs to leaf blocks xfs/592 and xfs/794 both trip this assertion in the leaf block freemap adjustment code after ~20 minutes of running on my test VMs: ASSERT(ichdr->firstused >= ichdr->count * sizeof(xfs_attr_leaf_entry_t) + xfs_attr3_leaf_hdr_size(leaf)); Upon enabling quite a lot more debugging code, I narrowed this down to fsstress trying to set a local extended attribute with namelen=3 and valuelen=71. This results in an entry size of 80 bytes. At the start of xfs_attr3_leaf_add_work, the freemap looks like this: i

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  8. CVE-2026-43156

    Mittel · CVSS 5.5EPSS 0,12%Keine Korrektur veröffentlicht

    net: usb: pegasus: enable basic endpoint checking

    In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: enable basic endpoint checking pegasus_probe() fills URBs with hardcoded endpoint pipes without verifying the endpoint descriptors: - usb_rcvbulkpipe(dev, 1) for RX data - usb_sndbulkpipe(dev, 2) for TX data - usb_rcvintpipe(dev, 3) for status interrupts A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes. Add a pegasus_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls before any resource allocation

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  10. CVE-2026-43149

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()

    In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.

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  11. CVE-2026-43141

    Hoch · CVSS 7.1EPSS 0,13%Keine Korrektur veröffentlicht

    ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut

    In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.

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  12. CVE-2026-43140

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    HID: magicmouse: Do not crash on missing msc->input

    In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: Do not crash on missing msc->input Fake USB devices can send their own report descriptors for which the input_mapping() hook does not get called. In this case, msc->input stays NULL, leading to a crash at a later time. Detect this condition in the input_configured() hook and reject the device. This is not supposed to happen with actual magic mouse devices, but can be provoked by imposing as a magic mouse USB device.

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  13. CVE-2026-43139

    Hoch · CVSS 8.6EPSS 0,38%Keine Korrektur veröffentlicht

    xfrm6: fix uninitialized saddr in xfrm6_get_saddr()

    In the Linux kernel, the following vulnerability has been resolved: xfrm6: fix uninitialized saddr in xfrm6_get_saddr() xfrm6_get_saddr() does not check the return value of ipv6_dev_get_saddr(). When ipv6_dev_get_saddr() fails to find a suitable source address (returns -EADDRNOTAVAIL), saddr->in6 is left uninitialized, but xfrm6_get_saddr() still returns 0 (success). This causes the caller xfrm_tmpl_resolve_one() to use the uninitialized address in xfrm_state_find(), triggering KMSAN warning: ===================================================== BUG: KMSAN: uninit-value in xfrm_state_find+0x2424/0xa940 xfrm_state_find+0x2424/0xa940 xfrm

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  14. CVE-2026-43136

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    HID: logitech-hidpp: Check maxfield in hidpp_get_report_length()

    In the Linux kernel, the following vulnerability has been resolved: HID: logitech-hidpp: Check maxfield in hidpp_get_report_length() Do not crash when a report has no fields. Fake USB gadgets can send their own HID report descriptors and can define report structures without valid fields. This can be used to crash the kernel over USB.

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  15. CVE-2026-43135

    Mittel · CVSS 5.5EPSS 0,12%Keine Korrektur veröffentlicht

    media: cx23885: Add missing unmap in snd_cx23885_hw_params()

    In the Linux kernel, the following vulnerability has been resolved: media: cx23885: Add missing unmap in snd_cx23885_hw_params() In error path, add cx23885_alsa_dma_unmap() to release the resource acquired by cx23885_alsa_dma_map().

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  16. CVE-2026-43134

    Hoch · CVSS 8.1EPSS 0,12%Keine Korrektur veröffentlicht

    Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE.

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  17. CVE-2026-43132

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    dm-verity: correctly handle dm_bufio_client_create() failure

    In the Linux kernel, the following vulnerability has been resolved: dm-verity: correctly handle dm_bufio_client_create() failure If either of the calls to dm_bufio_client_create() in verity_fec_ctr() fails, then dm_bufio_client_destroy() is later called with an ERR_PTR() argument. That causes a crash. Fix this.

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  18. CVE-2026-43130

    Mittel · CVSS 5.5EPSS 0,12%Keine Korrektur veröffentlicht

    iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode

    In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode Commit 4fc82cd907ac ("iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected") relies on pci_dev_is_disconnected() to skip ATS invalidation for safely-removed devices, but it does not cover link-down caused by faults, which can still hard-lock the system. For example, if a VM fails to connect to the PCIe device, "virsh destroy" is executed to release resources and isolate the fault, but a hard-lockup occurs while releasing the group fd. Call Trace: qi_submit_sync qi_fl

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  19. CVE-2026-43126

    Hoch · CVSS 7.8EPSS 0,16%Keine Korrektur veröffentlicht

    ALSA: mixer: oss: Add card disconnect checkpoints

    In the Linux kernel, the following vulnerability has been resolved: ALSA: mixer: oss: Add card disconnect checkpoints ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device. For avoiding the potential UAF scenarios, add sanity checks of the card disconnection at each entry point of OSS mixer accesses. The rwsem is taken just before that check, hence the rest context should be covered by that properly.

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  20. CVE-2026-43124

    Mittel · CVSS 5.5EPSS 0,13%Keine Korrektur veröffentlicht

    pstore: ram_core: fix incorrect success return when vmap() fails

    In the Linux kernel, the following vulnerability has been resolved: pstore: ram_core: fix incorrect success return when vmap() fails In persistent_ram_vmap(), vmap() may return NULL on failure. If offset is non-zero, adding offset_in_page(start) causes the function to return a non-NULL pointer even though the mapping failed. persistent_ram_buffer_map() therefore incorrectly returns success. Subsequent access to prz->buffer may dereference an invalid address and cause crashes. Add proper NULL checking for vmap() failures.

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