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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98046

bpf: Mark bpf_btf_find_by_name_kind() as sleepable

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf_btf_find_by_name_kind() as sleepable When bpf_btf_find_by_name_kind() finds a type in module BTF, it returns a new BTF object fd through __btf_new_fd(). This reaches anon_inode_getfd(), which can sleep while allocating or expanding the current task fd table. The helper prototype does not set might_sleep, so the verifier allows the helper in non-sleepable contexts such as BPF timer callbacks. The fd allocation can then sleep in softirq context and install the fd into the interrupted task. Mark the helper as sleepable. This preserves calls from the main body of a sleepable syscall program while rejecting calls from its non-sleepable regions.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < 7bf23cf7c9c0e0b5e638e497cdc0ec3f223742ccaffected
  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < b843ab43ac9d2fa1ddd0dab8d0dcc19dbf764e2faffected
  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < 29e40175617216fbd4544529f6bfb51d1ab95ba1affected
  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < 4d8784226bd3c6a707975081f986078f40456cecaffected
  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < 17f54a8f2b9714529d56edbbe12d448ccdbbf469affected
  • 3d78417b60fba249cc555468cb72d96f5cde2964 to < 620614bf7672130c43b3cff375525a2202f61979affected

Linux Linux

Default version status: affected

  • 5.14affected
  • 0 to < 5.14unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References