Debian Linux vulnerabilities

CVE-2023-53116 [HIGH] CVE-2023-53116: linux - In the Linux kernel, the following vulnerability has been resolved: nvmet: avoi... In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid

CVE-2025-37797 [HIGH] CVE-2025-37797: linux - In the Linux kernel, the following vulnerability has been resolved: net_sched: ... In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfsc_change_class() when working with certain child qdiscs like netem or codel. The vulnerabilit

CVE-2025-37819 [HIGH] CVE-2025-37819: linux - In the Linux kernel, the following vulnerability has been resolved: irqchip/gic... In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() With ACPI in place, gicv2m_get_fwnode() is registered with the pci subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime during a PCI host bridge probe. But, the call back is wrongly marked as __init, causing it to be free

CVE-2022-50051 [HIGH] CVE-2022-50051: linux - In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ... In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: debug: Fix potential buffer overflow by snprintf() snprintf() returns the would-be-filled size when the string overflows the given buffer size, hence using this value may result in the buffer overflow (although it's unrealistic). This patch replaces with a safer version, scnprintf() for pap

CVE-2025-38323 [HIGH] CVE-2025-38323: linux - In the Linux kernel, the following vulnerability has been resolved: net: atm: a... In the Linux kernel, the following vulnerability has been resolved: net: atm: add lec_mutex syzbot found its way in net/atm/lec.c, and found an error path in lecd_attach() could leave a dangling pointer in dev_lec[]. Add a mutex to protect dev_lecp[] uses from lecd_attach(), lec_vcc_attach() and lec_mcast_attach(). Following patch will use this mutex for /proc/net/atm

CVE-2023-53111 [HIGH] CVE-2023-53111: linux - In the Linux kernel, the following vulnerability has been resolved: loop: Fix u... In the Linux kernel, the following vulnerability has been resolved: loop: Fix use-after-free issues do_req_filebacked() calls blk_mq_complete_request() synchronously or asynchronously when using asynchronous I/O unless memory allocation fails. Hence, modify loop_handle_cmd() such that it does not dereference 'cmd' nor 'rq' after do_req_filebacked() finished unless we

CVE-2023-53088 [HIGH] CVE-2023-53088: linux - In the Linux kernel, the following vulnerability has been resolved: mptcp: fix ... In the Linux kernel, the following vulnerability has been resolved: mptcp: fix UaF in listener shutdown As reported by Christoph after having refactored the passive socket initialization, the mptcp listener shutdown path is prone to an UaF issue. BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x73/0xe0 Write of size 4 at addr ffff88810cb23098 by task syz-executor731/

CVE-2023-53082 [HIGH] CVE-2023-53082: linux - In the Linux kernel, the following vulnerability has been resolved: vp_vdpa: fi... In the Linux kernel, the following vulnerability has been resolved: vp_vdpa: fix the crash in hot unplug with vp_vdpa While unplugging the vp_vdpa device, it triggers a kernel panic The root cause is: vdpa_mgmtdev_unregister() will accesses modern devices which will cause a use after free. So need to change the sequence in vp_vdpa_remove [ 195.003359] BUG: unable to h

CVE-2023-53072 [HIGH] CVE-2023-53072: linux - In the Linux kernel, the following vulnerability has been resolved: mptcp: use ... In the Linux kernel, the following vulnerability has been resolved: mptcp: use the workqueue to destroy unaccepted sockets Christoph reported a UaF at token lookup time after having refactored the passive socket initialization part: BUG: KASAN: use-after-free in __token_bucket_busy+0x253/0x260 Read of size 4 at addr ffff88810698d5b0 by task syz-executor653/3198 CPU: 1

CVE-2025-37738 [HIGH] CVE-2025-37738: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: ignor... In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs past end Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry. This fixes the following KASAN reported issue: ================================================================== BUG: KASAN: slab-use-after-free in ext4_xattr_inode_dec_ref_al

CVE-2025-38346 [HIGH] CVE-2025-38346: linux - In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix... In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix UAF when lookup kallsym after ftrace disabled The following issue happens with a buggy module: BUG: unable to handle page fault for address: ffffffffc05d0218 PGD 1bd66f067 P4D 1bd66f067 PUD 1bd671067 PMD 101808067 PTE 0 Oops: Oops: 0000 [#1] SMP KASAN PTI Tainted: [O]=OOT_MODULE, [E]=UNSIG

CVE-2025-39701 [HIGH] CVE-2025-39701: linux - In the Linux kernel, the following vulnerability has been resolved: ACPI: pfr_u... In the Linux kernel, the following vulnerability has been resolved: ACPI: pfr_update: Fix the driver update version check The security-version-number check should be used rather than the runtime version check for driver updates. Otherwise, the firmware update would fail when the update binary had a lower runtime version number than the current one. [ rjw: Changelog ed

CVE-2025-39686 [HIGH] CVE-2025-39686: linux - In the Linux kernel, the following vulnerability has been resolved: comedi: Mak... In the Linux kernel, the following vulnerability has been resolved: comedi: Make insn_rw_emulate_bits() do insn->n samples The `insn_rw_emulate_bits()` function is used as a default handler for `INSN_READ` instructions for subdevices that have a handler for `INSN_BITS` but not for `INSN_READ`. Similarly, it is used as a default handler for `INSN_WRITE` instructions fo

CVE-2025-37903 [HIGH] CVE-2025-37903: linux - In the Linux kernel, the following vulnerability has been resolved: drm/amd/dis... In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix slab-use-after-free in hdcp The HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector objects without incrementing the kref reference counts. When using a USB-C dock, and the dock is unplugged, the corresponding amdgpu_dm_connector objects are freed, creating dangli

CVE-2022-49804 [HIGH] CVE-2022-49804: linux - In the Linux kernel, the following vulnerability has been resolved: s390: avoid... In the Linux kernel, the following vulnerability has been resolved: s390: avoid using global register for current_stack_pointer Commit 30de14b1884b ("s390: current_stack_pointer shouldn't be a function") made current_stack_pointer a global register variable like on many other architectures. Unfortunately on s390 it uncovers old gcc bug which is fixed only since gcc-9.

CVE-2025-39689 [HIGH] CVE-2025-39689: linux - In the Linux kernel, the following vulnerability has been resolved: ftrace: Als... In the Linux kernel, the following vulnerability has been resolved: ftrace: Also allocate and copy hash for reading of filter files Currently the reader of set_ftrace_filter and set_ftrace_notrace just adds the pointer to the global tracer hash to its iterator. Unlike the writer that allocates a copy of the hash, the reader keeps the pointer to the filter hashes. This

CVE-2025-38401 [HIGH] CVE-2025-38401: linux - In the Linux kernel, the following vulnerability has been resolved: mtk-sd: Pre... In the Linux kernel, the following vulnerability has been resolved: mtk-sd: Prevent memory corruption from DMA map failure If msdc_prepare_data() fails to map the DMA region, the request is not prepared for data receiving, but msdc_start_data() proceeds the DMA with previous setting. Since this will lead a memory corruption, we have to stop the request operation soon

CVE-2023-54285 [HIGH] CVE-2023-54285: linux - In the Linux kernel, the following vulnerability has been resolved: iomap: Fix ... In the Linux kernel, the following vulnerability has been resolved: iomap: Fix possible overflow condition in iomap_write_delalloc_scan folio_next_index() returns an unsigned long value which left shifted by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead use folio_pos(folio) + folio_size(folio), which does this correctly. Scope: local bookworm:

CVE-2023-53138 [HIGH] CVE-2023-53138: linux - In the Linux kernel, the following vulnerability has been resolved: net: caif: ... In the Linux kernel, the following vulnerability has been resolved: net: caif: Fix use-after-free in cfusbl_device_notify() syzbot reported use-after-free in cfusbl_device_notify() [1]. This causes a stack trace like below: BUG: KASAN: use-after-free in cfusbl_device_notify+0x7c9/0x870 net/caif/caif_usb.c:138 Read of size 8 at addr ffff88807ac4e6f0 by task kworker/u4:

CVE-2022-50097 [HIGH] CVE-2022-50097: linux - In the Linux kernel, the following vulnerability has been resolved: video: fbde... In the Linux kernel, the following vulnerability has been resolved: video: fbdev: s3fb: Check the size of screen before memset_io() In the function s3fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 54.0