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Sicherheitslücken in linux-azure-fde-6.8 · Seite 155

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-azure-fde-6.8: 797. Davon im KEV-Katalog: 0.

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  1. CVE-2026-72117

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler()

    In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler() For an rx op subscribed on all interfaces (ifindex == 0), the same op is registered once in the shared per-netns wildcard filter list, so bcm_rx_handler() can run concurrently on different CPUs for frames arriving on different net devices. op->rx_stamp and op->rx_ifindex were written before bcm_rx_update_lock was taken, allowing concurrent writers to race each other - including a torn store of the 64-bit rx_stamp on 32-bit platforms. Beyond a torn store bcm_send_to_user() must report the timestamp/ifindex

    Veröffentlicht Aktualisiert
  2. CVE-2026-72116

    Hoch · CVSS 7.1EPSS 0,19%Keine Korrektur veröffentlicht

    can: bcm: fix stale rx/tx ops after device removal

    In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix stale rx/tx ops after device removal RX: an RX_SETUP update(!) for an existing op skipped can_rx_register() unconditionally, even when a concurrent NETDEV_UNREGISTER had already torn down its registration (op->rx_reg_dev == NULL). This silently did not re-enable frame delivery for that updated filter. bcm_rx_setup() now re-registers in that case, while leaving rx_ops with ifindex = 0 (all CAN devices) which never carry a tracked rx_reg_dev registered as-is. TX: bcm_notify() only handled bo->rx_ops on NETDEV_UNREGISTER, leaving tx_ops with an active cyclic tra

    Veröffentlicht Aktualisiert
  3. CVE-2026-72115

    Hoch · CVSS 8.1EPSS 0,3%Keine Korrektur veröffentlicht

    can: bcm: track a single source interface for ANYDEV timeout/throttle ops

    In the Linux kernel, the following vulnerability has been resolved: can: bcm: track a single source interface for ANYDEV timeout/throttle ops An ANYDEV rx op (ifindex == 0) with an active RX timeout and/or throttle timer has no defined semantics when matching frames arrive from several interfaces: bcm_rx_handler() can run concurrently for the same op on different CPUs, racing hrtimer_cancel()/ bcm_rx_starttimer() against bcm_rx_timeout_handler() and causing spurious RX_TIMEOUT notifications and last_frames corruption. The same concurrency lets throttled multiplex frames from different interfaces clobber the single rx_ifindex/rx_stamp fields

    Veröffentlicht Aktualisiert
  4. CVE-2026-72114

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    can: bcm: validate frame length in bcm_rx_setup() for RTR replies

    In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcm_rx_setup() for RTR replies bcm_tx_setup() validates cf->len against the CAN/CAN FD DLC limits before installing frames for TX_SETUP, but bcm_rx_setup() never did the same for the RTR-reply frame configured via RX_SETUP with RX_RTR_FRAME.

    Veröffentlicht Aktualisiert
  5. CVE-2026-72113

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    can: bcm: add missing device refcount for CAN filter removal

    In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing device refcount for CAN filter removal sashiko-bot remarked a problem with a concurrent device unregistration in isotp.c which also is present in the bcm.c code. A former fix for raw.c commit c275a176e4b6 ("can: raw: add missing refcount for memory leak fix") introduced a netdevice_tracker which solves the issue for bcm.c too. bcm_release(), bcm_delete_rx_op() and bcm_notifier() relied on dev_get_by_index(ifindex) to re-find the device for an rx_op before unregistering its filter. If a concurrent NETDEV_UNREGISTER has already unlisted the device from

    Veröffentlicht Aktualisiert
  6. CVE-2026-72111

    Hoch · CVSS 8.8EPSS 0,18%Keine Korrektur veröffentlicht

    bpf: Reset register bounds before narrowing retval range in check_mem_access()

    In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register bounds before narrowing retval range in check_mem_access() When the BPF verifier processes a context load of an LSM hook return value, it calls __mark_reg_s32_range() to narrow the register to the hook's valid range. However, __mark_reg_s32_range() intersects the new range with the register's existing bounds using max_t()/min_t() rather than replacing them. If the destination register carries stale bounds from a prior instruction (e.g. BPF_MOV64_IMM), the intersection can produce a range narrower than reality. The verifier then believes it knows the reg

    Veröffentlicht Aktualisiert
  7. CVE-2026-72110

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    bpf,fork: wipe ->bpf_storage before bailouts that access it

    In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe ->bpf_storage before bailouts that access it Currently, copy_process() can bail out to free_task() before p->bpf_storage has been initialized, with this call graph (shown here for the !CONFIG_MEMCG case): copy_process dup_task_struct arch_dup_task_struct [copies the entire task_struct, including ->bpf_storage member] [RLIMIT_NPROC check fails] delayed_free_task free_task bpf_task_storage_free rcu_dereference(task->bpf_storage) bpf_local_storage_destroy In this case, the nascent task's ->bpf_storage member that bpf_l

    Veröffentlicht Aktualisiert
  8. CVE-2026-72109

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

    net: sparx5: unregister blocking notifier on init failure

    In the Linux kernel, the following vulnerability has been resolved: net: sparx5: unregister blocking notifier on init failure sparx5_register_notifier_blocks() registers the switchdev blocking notifier before allocating the ordered workqueue. If the workqueue allocation fails, the error path unregisters the switchdev and netdevice notifiers, but leaves the blocking notifier registered. Add a separate error label for the workqueue allocation failure path and unregister the switchdev blocking notifier there.

    Veröffentlicht Aktualisiert
  9. CVE-2026-72108

    Hoch · CVSS 7.8EPSS 0,26%Keine Korrektur veröffentlicht

    dm thin metadata: fix metadata snapshot consistency on commit failure

    In the Linux kernel, the following vulnerability has been resolved: dm thin metadata: fix metadata snapshot consistency on commit failure __reserve_metadata_snap() and __release_metadata_snap() modify the superblock's held_root directly in the block_manager's buffer. If the subsequent metadata commit fails, the held_root gets flushed to disk through the abort_transaction path, resulting in inconsistent metadata. Reproducer 1: __reserve_metadata_snap() 1. Create a 2 MiB metadata device and make the region after the 14th block inaccessible, to trigger metadata commit failure in the subsequent reserve_metadata_snap operation. The 14th

    Veröffentlicht Aktualisiert
  10. CVE-2026-72107

    Hoch · CVSS 8.8EPSS 0,65%Keine Korrektur veröffentlicht

    dm era: fix out-of-bounds memory access for non-zero start sector

    In the Linux kernel, the following vulnerability has been resolved: dm era: fix out-of-bounds memory access for non-zero start sector dm-era tracks writes in target-relative blocks, but era_map() calculates the writeset block before applying the target offset. Tables with a non-zero start sector can therefore pass an absolute mapped-device block to metadata_current_marked(). If the absolute block is beyond the current writeset size, writeset_marked() tests past the end of the in-core bitset. KASAN reports this as a vmalloc-out-of-bounds access. Apply the target offset before calculating the era block so writeset lookups use the target-r

    Veröffentlicht Aktualisiert
  11. CVE-2026-72106

    Nicht bewertetEPSS 0,23%Keine Korrektur veröffentlicht

    dm-ioctl: fix a possible overflow in list_version_get_info

    In the Linux kernel, the following vulnerability has been resolved: dm-ioctl: fix a possible overflow in list_version_get_info sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow. Fix this buffer overflow by replacing "sizeof(tt->version)" with "sizeof(struct dm_target_versions)".

    Veröffentlicht Aktualisiert
  12. CVE-2026-72105

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    dm-log: fix a bitset_size overflow on 32bit machines

    In the Linux kernel, the following vulnerability has been resolved: dm-log: fix a bitset_size overflow on 32bit machines Commit c20e36b7631d ("dm log: fix out-of-bounds write due to region_count overflow") made sure that region_count could fit in an unsigned int. But the bitmap memory isn't allocated based on region_count. It uses bitset_size (a size_t variable). The first step of calculating bitset_size is to set it to region_count, rounded up to a multiple of BITS_PER_LONG. If region_size is less than BITS_PER_LONG smaller than UINT_MAX, it will get rounded up to 2^32. On a 32bit architecture, this will make bitset_size wrap around to 0 a

    Veröffentlicht Aktualisiert
  13. CVE-2026-72102

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    dm_early_create: fix freeing used table on dm_resume failure

    In the Linux kernel, the following vulnerability has been resolved: dm_early_create: fix freeing used table on dm_resume failure If dm_resume fails, the kernel attempts to free table with dm_table_destroy, but the table was already instantiated with dm_swap_table. This commit skips the call to dm_table_destroy in this case.

    Veröffentlicht Aktualisiert
  14. CVE-2026-72099

    Hoch · CVSS 7.1EPSS 0,55%Keine Korrektur veröffentlicht

    dm-integrity: don't increment hash_offset twice

    In the Linux kernel, the following vulnerability has been resolved: dm-integrity: don't increment hash_offset twice hash_offset is already incremented in the loop "for (i = 0; i < to_copy; i++, ts--)". Do not increment it again.

    Veröffentlicht Aktualisiert
  15. CVE-2026-72098

    Kritisch · CVSS 9.8EPSS 0,79%Keine Korrektur veröffentlicht

    dm-verity: fix buffer overflow in FEC calculation

    In the Linux kernel, the following vulnerability has been resolved: dm-verity: fix buffer overflow in FEC calculation There's a buffer overflow in dm-verity-fec: if (neras && *neras <= v->fec->roots) fio->erasures[(*neras)++] = i; This allows *neras to reach roots + 1 (the post-increment pushes it past roots). This value is then passed as no_eras to decode_rs8(). Inside the RS decoder (lib/reed_solomon/decode_rs.c:113-121), the erasure locator polynomial loop writes lambda[j] where j can reach nroots + 1 — one element past the end of lambda[] (which is sized nroots + 1, valid indices 0..nroots). The out-of-bounds write lands on syn[0], c

    Veröffentlicht Aktualisiert
  16. CVE-2026-72096

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    dm-verity: make error counter atomic

    In the Linux kernel, the following vulnerability has been resolved: dm-verity: make error counter atomic The error counter "v->corrupted_errs" was not atomic, thus it could be subject to race conditions. The call to dm_audit_log_target("max-corrupted-errors") may be skipped due to the races.

    Veröffentlicht Aktualisiert
  17. CVE-2026-72089

    Hoch · CVSS 7.1EPSS 0,17%Keine Korrektur veröffentlicht

    accel/ivpu: Reject firmware log with size smaller than header

    In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Reject firmware log with size smaller than header fw_log_from_bo() validates the tracing buffer header_size and that the log fits within the BO, but never checks that log->size is at least log->header_size. fw_log_print_buffer() then computes: u32 data_size = log->size - log->header_size; which underflows to a near-U32_MAX value when firmware reports a log whose size is smaller than its header. That huge data_size defeats the log_start/log_end bounds clamps added by commit dd1311bcf0e6 ("accel/ivpu: Add bounds checks for firmware log indices"), so fw_log_pri

    Veröffentlicht Aktualisiert
  18. CVE-2026-72088

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    scsi: hpsa: Fix DMA mapping leak on IOACCEL2 reset path

    In the Linux kernel, the following vulnerability has been resolved: scsi: hpsa: Fix DMA mapping leak on IOACCEL2 reset path If phys_disk->in_reset is set, the function returns directly without undoing the resources acquired for the command. Add the missing error cleanup by unmapping the IOACCEL2 SG chain block when needed, unmapping the SCSI command, and dropping the outstanding IOACCEL command count before returning.

    Veröffentlicht Aktualisiert
  19. CVE-2026-72087

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    scsi: lpfc: Fix memory leak in lpfc_sli4_driver_resource_setup()

    In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix memory leak in lpfc_sli4_driver_resource_setup() The memory allocated for mboxq using mempool_alloc() is not freed in some of the early exit error paths. Fix that by moving the mempool_free() call to an earlier point after last use.

    Veröffentlicht Aktualisiert

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