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CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to hold the array of `struct comedi_insn`, getting the length from the `n_insns` member of the `struct comedi_insnlist` supplied by the user. The allocation will fail with a WARNING and a stack dump if it is too large. Avoid that by failing with an `-EINVAL` error if the supplied `n_insns` value is unreasonable. D... • https://git.kernel.org/stable/c/ed9eccbe8970f6eedc1b978c157caf1251a896d4 •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: comedi: Fix use of uninitialized data in insn_rw_emulate_bits() For Comedi `INSN_READ` and `INSN_WRITE` instructions on "digital" subdevices (subdevice types `COMEDI_SUBD_DI`, `COMEDI_SUBD_DO`, and `COMEDI_SUBD_DIO`), it is common for the subdevice driver not to have `insn_read` and `insn_write` handler functions, but to have an `insn_bits` handler function for handling Comedi `INSN_BITS` instructions. In that case, the subdevice's `insn_re... • https://git.kernel.org/stable/c/ed9eccbe8970f6eedc1b978c157caf1251a896d4 •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: comedi: Fix initialization of data for instructions that write to subdevice Some Comedi subdevice instruction handlers are known to access instruction data elements beyond the first `insn->n` elements in some cases. The `do_insn_ioctl()` and `do_insnlist_ioctl()` functions allocate at least `MIN_SAMPLES` (16) data elements to deal with this, but they do not initialize all of that. For Comedi instruction codes that write to the subdevice, th... • https://git.kernel.org/stable/c/ed9eccbe8970f6eedc1b978c157caf1251a896d4 •

CVSS: 6.9EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free. This patch addresses the issue by: 1. Moved qfq_destroy_class into the critical section. 2. Added sch_tree_lock protection to qfq_dump_clas... • https://git.kernel.org/stable/c/462dbc9101acd38e92eda93c0726857517a24bbd •

CVSS: 7.1EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: rpl: Fix use-after-free in rpl_do_srh_inline(). Running lwt_dst_cache_ref_loop.sh in selftest with KASAN triggers the splat below [0]. rpl_do_srh_inline() fetches ipv6_hdr(skb) and accesses it after skb_cow_head(), which is illegal as the header could be freed then. Let's fix it by making oldhdr to a local struct instead of a pointer. [0]: [root@fedora net]# ./lwt_dst_cache_ref_loop.sh ... TEST: rpl (input) [ 57.631529] ====================... • https://git.kernel.org/stable/c/a7a29f9c361f8542604ef959ae6627f423b7a412 •

CVSS: 5.6EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: usb: net: sierra: check for no status endpoint The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interrupt input. Rectify the omission. In the Linux kernel, the following vulnerability has been resolved: usb: net: sierra: check for no status endpoint The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interru... • https://git.kernel.org/stable/c/eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb() syzbot reported null-ptr-deref in l2cap_sock_resume_cb(). [0] l2cap_sock_resume_cb() has a similar problem that was fixed by commit 1bff51ea59a9 ("Bluetooth: fix use-after-free error in lock_sock_nested()"). Since both l2cap_sock_kill() and l2cap_sock_resume_cb() are executed under l2cap_sock_resume_cb(), we can avoid the issue simply by checking if chan->data is NULL. Let's not access... • https://git.kernel.org/stable/c/d97c899bde330cd1c76c3a162558177563a74362 •

CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry A crash in conntrack was reported while trying to unlink the conntrack entry from the hash bucket list: [exception RIP: __nf_ct_delete_from_lists+172] [..] #7 [ff539b5a2b043aa0] nf_ct_delete at ffffffffc124d421 [nf_conntrack] #8 [ff539b5a2b043ad0] nf_ct_gc_expired at ffffffffc124d999 [nf_conntrack] #9 [ff539b5a2b043ae0] __nf_conntrack_find_get at ffffffffc124efbc [nf_c... • https://git.kernel.org/stable/c/1397af5bfd7d32b0cf2adb70a78c9a9e8f11d912 •

CVSS: 5.9EPSS: 0%CPEs: 6EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x898/0x9a0 [tls] (net/tls/tls_strp.c:436 net/tls/tls_strp.c:530 net/tls/tls_strp.c:544) Read of size 4 at addr ffff... • https://git.kernel.org/stable/c/0d87bbd39d7fd1135ab9eca672d760470f6508e8 •

CVSS: 6.1EPSS: 0%CPEs: 5EXPL: 0

28 Jul 2025 — In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime Assuming the "rx-vlan-filter" feature is enabled on a net device, the 8021q module will automatically add or remove VLAN 0 when the net device is put administratively up or down, respectively. There are a couple of problems with the above scheme. The first problem is a memory leak that can happen if the "rx-vlan-filter" feature is disabled while the device is runn... • https://git.kernel.org/stable/c/ad1afb00393915a51c21b1ae8704562bf036855f •