Skip to content
fr Sign in
7.8 High

CVE-2024-27020 In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in…

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.

Affected products and versions

Product Affected versions Fixed in
Linux 6.9 earliest → < 6.9 6.9
Linux 6.8 earliest → < 6.8.8 6.8.8
Linux 6.6 earliest → < 6.6.29 6.6.29
Linux 6.1 earliest → < 6.1.88 6.1.88
Linux 5.15 earliest → < 5.15.157 5.15.157
Linux 5.10 earliest → < 5.10.216 5.10.216
Linux 5.4 earliest → < 5.4.275 5.4.275
Linux 4.19 earliest → < 4.19.313 4.19.313
Linux 3.13 No fix stated
Show the 7 other branches
Product Affected versions Fixed in
RUGGEDCOM RST2428P 3.1 earliest → < 3.1 3.1
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Versions not published
SCALANCE XCM-/XRM-/XCH-/XRH-300 family 3.1 earliest → < 3.1 3.1
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 earliest → < 1.1.1 1.1.1
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Linux

The 18283 CVEs of Linux →
CVE-2026-99270 In the Linux kernel, the following vulnerability has been resolved: tcp: Fix potential UAF in reqsk_timer_handler() 8.1 High CVE-2026-99269 In the Linux kernel, the following vulnerability has been resolved: sched_ext: Wait for SCX_OPSS_DISPATCHING before… 7.8 High CVE-2026-99261 In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: correct reservation fence slots for… Not rated CVE-2026-99260 In the Linux kernel, the following vulnerability has been resolved: ntfs: fix resident conversion in ntfs_new_attr_flags… Not rated
Track this CVE