p PatchFirst

PatchFirst · Aktuelle Sicherheitslücken

Sicherheitslücken in linux-lowlatency-hwe-6.5 · Seite 59

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-lowlatency-hwe-6.5: 1054. Davon im KEV-Katalog: 0.

RSS ↗ JSON ↗
Sicherheitslücken filtern
Filter zurücksetzen

Sicherheitslücken: 17483

  1. CVE-2026-98067

    Niedrig · CVSS 2EPSS 0,17%Keine Korrektur veröffentlicht

    erofs: disable LZ4 rolling decompression for now

    In the Linux kernel, the following vulnerability has been resolved: erofs: disable LZ4 rolling decompression for now LZ4 rolling decompression [1] was introduced to reduce the memory footprint of temporary pages: For many cases, it is needed for users to read small data within a compressed extent (pcluster), either due to random small read, or since uptodate folios (typically order-0) cannot be reused for decompression again since decompression algorithm refills already-uptodate folios. Rolling decompression works because LZ4 is LZ77-based and only refers to the most recent 64 KiB of decompressed data, so in theory only a bounded rol

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  2. CVE-2026-98066

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    ALSA: caiaq: Fix potential double-free at error path

    In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Fix potential double-free at error path The fix for caiaq driver's resource management to handle the errors tries to release the resources in a common destructor call, but as a sashiko review for another patch suggested, some of the audio resources such as URBs have been already freed, and this may lead to a double-free. For addressing the double-free, call the common destructor function from each place, and assure that the resource pointers get cleared.

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  3. CVE-2026-98065

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    bpf: Reject key-less BTF for hash maps

    In the Linux kernel, the following vulnerability has been resolved: bpf: Reject key-less BTF for hash maps map_check_btf() allows a key-less BTF (btf_key_type_id == 0) only for maps that have a ->map_check_btf callback, and leaves the actual decision to that callback. Hash maps used to have no ->map_check_btf, so a key-less BTF was rejected outright. That changed when htab and rhtab gained a ->map_check_btf to register a dtor - htab in commit 1df97a7453ee ("bpf: Register dtor for freeing special fields") and rhtab in commit 6905f8601298 ("bpf: Allow special fields in resizable hashtab"). Neither looks at the key, so a key-less hash map now

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  4. CVE-2026-98064

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    bpf: Fix NULL-ptr-deref when showing a void BTF type

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref when showing a void BTF type btf_modifier_show() resolves the modifier and then calls btf_type_ops(t)->show() unconditionally. For the void type (type_id 0, BTF_KIND_UNKN) kind_ops[] has no entry, so ->show is NULL. A "const void" (a modifier resolving to void) cannot be a map key or value - map_check_btf() rejects it because void has no size - so the map dump path does not reach it. But bpf_snprintf_btf() takes a type_id straight from the BPF program, and passing such a "const void" from the vmlinux BTF NULL-derefs: KASAN: null-ptr-deref in range

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  5. CVE-2026-98063

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    bpf: Fix NULL-ptr-deref in btf_var_show()

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref in btf_var_show() btf_var_show() calls btf_type_id_resolve() unconditionally, which dereferences btf->resolved_ids. That is NULL for a base BTF - e.g. the vmlinux BTF that bpf_snprintf_btf() renders against - since base BTF is not resolved during parsing. btf_modifier_show() guards this with 'if (btf->resolved_ids)', but btf_var_show() does not. A BPF program that passes the type_id of a BTF_KIND_VAR from the vmlinux BTF to bpf_snprintf_btf() thus NULL-derefs: KASAN: probably user-memory-access in range [0x46638-0x4663f] RIP: 0010:btf_var_show (ker

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  6. CVE-2026-98062

    Mittel · CVSS 5.5EPSS 0,15%Keine Korrektur veröffentlicht

    bpf: Mark signal tracepoint siginfo arguments as scalar

    In the Linux kernel, the following vulnerability has been resolved: bpf: Mark signal tracepoint siginfo arguments as scalar The signal_generate and signal_deliver tracepoints declare their info argument as a struct kernel_siginfo pointer. btf_ctx_access() therefore treats it as a trusted pointer for tp_btf programs. Signal delivery also uses SEND_SIG_NOINFO and SEND_SIG_PRIV as special values for this argument. Those values are zero and one respectively, and are not pointers. A tp_btf program can currently dereference either value and fault the kernel. In particular, signal_generate can run from timer interrupt context, turning the fault i

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  7. CVE-2026-98061

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    bpf: Reject tail calls directly from callback frames

    In the Linux kernel, the following vulnerability has been resolved: bpf: Reject tail calls directly from callback frames A tail call from a non-zero frame is modeled as a return from that frame. The verifier makes R0 unknown and calls prepare_func_exit() for the taken branch. When the current frame is a synchronous callback, prepare_func_exit() enforces the callback return-value contract and marks R0 precise. Since the tail-call path synthesized R0 rather than deriving it from an instruction, precision backtracking reaches the callback-calling instruction with R0 still requested and triggers the "callback unexpected regs" verifier bug. A C

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  8. CVE-2026-98060

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    bpf: Reject resilient lock operations in rbtree callbacks

    In the Linux kernel, the following vulnerability has been resolved: bpf: Reject resilient lock operations in rbtree callbacks __bpf_rbtree_add() keeps parent and link pointers live across calls to the program-supplied comparison callback. The verifier therefore requires the root's lock to remain held throughout the callback. The helper path enforces this rule for bpf_spin_lock() and bpf_spin_unlock(), but the resilient lock kfunc argument path does not. Since resilient locks may protect BPF rbtree roots, a callback can release the root lock and let another CPU remove and free the node referenced by the in-progress tree walk. The walk then

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  9. CVE-2026-98059

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

    bpf: Mark sched_process_wait argument as nullable

    In the Linux kernel, the following vulnerability has been resolved: bpf: Mark sched_process_wait argument as nullable do_wait() passes wo->wo_pid to the sched_process_wait tracepoint. kernel_wait4() leaves wo_pid NULL for wait4(-1), and kernel_waitid_prepare() does likewise for waitid(P_ALL). btf_ctx_access() currently types argument 0 as PTR_TO_BTF_ID | PTR_TRUSTED. Without PTR_MAYBE_NULL, the verifier accepts an unchecked dereference. Trusted pointer loads have no fault protection, so a wait for any child can then cause a NULL pointer dereference in JITed BPF code. Add sched_process_wait to raw_tp_null_args[] with argument 0 marked null

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  10. CVE-2026-98058

    Mittel · CVSS 6.7EPSS 0,2%Keine Korrektur veröffentlicht

    bpf: Mark syscall helpers as sleepable

    In the Linux kernel, the following vulnerability has been resolved: bpf: Mark syscall helpers as sleepable bpf_sys_bpf() executes the bpf(2) syscall body, which can take mutexes, allocate with GFP_KERNEL, and wait for an RCU grace period. bpf_sys_close() reaches close_fd() and filp_close(), which can sleep as well. Both helpers are limited to BPF_PROG_TYPE_SYSCALL, whose main program is sleepable. That does not make every callback sleepable: a syscall program can register a bpf_timer callback, and the verifier checks that callback in a non-sleepable context while retaining the syscall helper set. Without .might_sleep on the prototypes, su

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  11. CVE-2026-98057

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    ring-buffer: Add checking nr_subbufs to persistent ring buffer validation

    In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nr_subbufs to persistent ring buffer validation Sashiko reported that the code was using meta->nr_subbufs without making sure that it matched the nr_pages + 1 on data that was assuming the two were the same. Add a check to the persistent ring buffer validation code to make sure that the saved nr_subbufs matches what we expect.

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  12. CVE-2026-98056

    Hoch · CVSS 7.5EPSS 0,61%Keine Korrektur veröffentlicht

    nvme: remove stale namespaces by NSID range during scan

    In the Linux kernel, the following vulnerability has been resolved: nvme: remove stale namespaces by NSID range during scan nvme_scan_ns_list() drops the stale namespaces in each gap in the reported NSID list one NSID at a time. Every iteration calls nvme_find_get_ns() to look the namespace up and removes it if it is present. The loop runs once per NSID in the gap rather than once per namespace actually present. NSIDs are 32-bit, so a target with a sparse NSID space can make a single gap spin the loop billions of times with nothing to remove. watchdog: BUG: soft lockup - CPU#4 stuck for 26s! Workqueue: nvme-wq nvme_scan_work [nvme_cor

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  13. CVE-2026-98055

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    ASoC: Intel: avs: Clean up the bus when fetching ML caps fails

    In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Clean up the bus when fetching ML caps fails snd_hdac_ext_bus_get_ml_capabilities() may fail and its return code shall be checked and accounted for. Address the issue by updating the error-path for avs_pci_probe(). At the same time, if the function in question succeeds but the next part of avs_pci_probe() fails, the hlink list shall be cleaned up before leaving the scope.

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  14. CVE-2026-98054

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

    ASoC: Intel: avs: Fix unbalanced module reference count

    In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Fix unbalanced module reference count strace_open() invokes try_module_get() which on success takes the module reference. If any follow up operation causes strace_open() to fail, the refcount shall be put down.

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  15. CVE-2026-98053

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

    ASoC: Intel: avs: Refactor and fix init_config access

    In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Refactor and fix init_config access Existing code accesses enties found in ->init_configs array through indexes that are part of ->config_ids array. Those two are limited by: ->num_init_configs and ->num_config_ids respectively. Using ID larger or equal to ->num_init_configs leads to out-of-bounds access: avs_path_module_send_init_configs() loop: (...) &acomp->tplg->init_configs[ids[i]] ^ out-of-bounds candidate Rather than adding another if-statement, refactor the code. There is no need to store the IDs, have a list of pointers to actual config

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  16. CVE-2026-98052

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

    net: bcmasp: clear txcb->last before writing each descriptor

    In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: clear txcb->last before writing each descriptor bcmasp_xmit() only wrote txcb->last = true for the final fragment of an SKB; non-final fragments left the field untouched. If a descriptor slot was reused while it still held a stale true from a previous SKB (possible when tx_spb_ring_full() underreported fullness), bcmasp_tx_reclaim() would see last == true mid-SKB and call dev_consume_skb_any() prematurely, freeing the sk_buff while its remaining fragments were still in flight. Unconditionally clear txcb->last before the conditional set so every descriptor slo

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  17. CVE-2026-98051

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

    net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times

    In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times The loop initialised next_index from intf->tx_spb_index on every iteration, so incr_ring() always produced the same result and only one slot was ever tested. Move the initialisation before the loop so each iteration advances next_index and the function correctly checks that cnt consecutive descriptor slots are available before allowing a new transmission.

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  18. CVE-2026-98050

    Hoch · CVSS 7.5EPSS 0,17%Keine Korrektur veröffentlicht

    mlxsw: spectrum_ptp: Fix napi_gro_receive() call from GC workqueue context

    In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_ptp: Fix napi_gro_receive() call from GC workqueue context Currently mlxsw_sp1_ptp_ht_gc_collect() is run from the PTP garbage-collection workqueue, rather than the NAPI poll context. For any unmatched PTP entries carrying an SKB, it calls mlxsw_sp1_ptp_unmatched_finish() -> mlxsw_sp1_ptp_packet_finish(). For ingress packets, this calls mlxsw_sp_rx_listener_no_mark_func(). The end of that function is the following: skb->protocol = eth_type_trans(skb, skb->dev); napi_gro_receive(mlxsw_skb_cb(skb)->rx_md_info.napi, skb); The napi pointer is one that

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  19. CVE-2026-98049

    Mittel · CVSS 5.5EPSS 0,15%Keine Korrektur veröffentlicht

    bpf: zero extend the result of an arena 32-bit cmpxchg

    In the Linux kernel, the following vulnerability has been resolved: bpf: zero extend the result of an arena 32-bit cmpxchg bpf_convert_ctx_accesses() rewrites an atomic on an arena pointer from BPF_STX | BPF_ATOMIC to BPF_STX | BPF_PROBE_ATOMIC, and it runs before bpf_opt_subreg_zext_lo32_rnd_hi32(). That pass emits an explicit zero extension for a 32-bit cmpxchg even when bpf_jit_needs_zext() is false. This is done because on some architectures 32-bit cmpxchg requires explicit zero extension for the dst register. E.g. on x86-64 'lock cmpxchg' does not change the %eax if comparison is successful, while BPF semantics declare that each opera

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  20. CVE-2026-98048

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    bpf: don't rewrite bpf_fastcall patterns entered by a jump

    In the Linux kernel, the following vulnerability has been resolved: bpf: don't rewrite bpf_fastcall patterns entered by a jump mark_fastcall_pattern_for_call() must ensure that matched "spill; call; fill" instruction series is not interrupted by a jump. Otherwise the rewrite applied by bpf_remove_fastcall_spills_fills() is not sound. Record the instructions targeted by jumps in insn_aux_data[*].jump_target when the CFG is built and use this flag to stop growing a pattern at such an instruction. Jumps to the first spill are fine. Note that existing insn_aux_data[*].jmp_point field can't be reused, as it marks subprogram return instructions

    linux-lowlatency-hwe-6.5Betriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

Prüfen Sie Ihren Server

Gleichen Sie Ihren installierten Stack und seine Versionen mit den aktuellen Sicherheitsmeldungen ab.

Prüfen Sie Ihren Server →