CVE-2026-22991High· 7.5▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: libceph: make free_choose_arg_map() resilient to partial allocation free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.4%
In the Linux kernel, the following vulnerability has been resolved:
libceph: make free_choose_arg_map() resilient to partial allocation
free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation.
For example, in decode_choose_args(), if allocation of arg_map->args fails, execution jumps to the fail label and free_choose_arg_map() is called. Since arg_map->size is updated to a non-zero value before memory allocation, free_choose_arg_map() will iterate over arg_map->args and dereference a NULL pointer.
To prevent this potential NULL pointer dereference and make free_choose_arg_map() more resilient, add checks for pointers before iterating.
Linux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < 9b3730dabcf3764bfe3ff07caf55e641a0b45234Linux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < 851241d3f78a5505224dc21c03d8692f530256b4Linux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < ec1850f663da64842614c86b20fe734be070c2baLinux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < 8081faaf089db5280c3be820948469f7c58ef8ddLinux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdfLinux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < f21c3fdb96833aac2f533506899fe38c19cf49d5Linux >= 5cf9c4a9959b6273675310d14a834ef14fbca37c < e3fe30e57649c551757a02e1cad073c47e1e075eLinux 4.13Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-98770Noneusb: gadget: midi2: Fix the jack descriptor array sizes
CVE-2026-98769Noneusb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd
CVE-2026-98774Nonerust_binder: cancel deferred work items in thread exit
CVE-2026-98772NoneUSB: serial: fix port tear down use-after-free
CVE-2026-98771Noneusb: storage: sierra_ms: reject short SWoC info transfers
CVE-2026-98776Nonebinderfs: fix UAF write in binder_add_device