Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2022-50486

net: ethernet: ti: Fix return type of netcp_ndo_start_xmit()

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: Fix return type of netcp_ndo_start_xmit() With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. A proposed warning in clang aims to catch these at compile time, which reveals: drivers/net/ethernet/ti/netcp_core.c:1944:21: error: incompatible function pointer types initializing 'netdev_tx_t (*)(struct sk_buff *, struct net_device *)' (aka 'enum netdev_tx (*)(struct sk_buff *, struct net_device *)') with an expression of type 'int (struct sk_buff *, struct net_device *)' [-Werror,-Wincompatible-function-pointer-types-strict] .ndo_start_xmit = netcp_ndo_start_xmit, ^~~~~~~~~~~~~~~~~~~~ 1 error generated. ->ndo_start_xmit() in 'struct net_device_ops' expects a return type of 'netdev_tx_t', not 'int'. Adjust the return type of netcp_ndo_start_xmit() to match the prototype's to resolve the warning and CFI failure.

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

  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < a447479ea2cf35603b5739ea947885024b901222affected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < 17bb9bdf701f3e811a9f4820b08b9538ade2641caffected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < d837d74eae077cc3ef9e191ba8535b5f602d4673affected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < dbe1a6b930ae9647e8ce0b684c903ac67d4398ebaffected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < 5b0b6553bf4ad3a435a57e02c68d6075f384e1beaffected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < a413ebb6049edd881c6427cfa25a7efddd6a4f74affected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < 765636e58ba505cfe4927eda7ee83791b1c6402aaffected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < 1e4953b826e12b31995564a459dbd4e9e4604a35affected
  • 84640e27f23041d474c31d3362c3e2185ad68ec2 to < 63fe6ff674a96cfcfc0fa8df1051a27aa31c70b4affected

Linux Linux

Default version status: affected

  • 4.0affected
  • 0 to < 4.0unaffected
  • 4.9.337 to ≤ 4.9.*unaffected
  • 4.14.303 to ≤ 4.14.*unaffected
  • 4.19.270 to ≤ 4.19.*unaffected
  • 5.4.229 to ≤ 5.4.*unaffected
  • 5.10.163 to ≤ 5.10.*unaffected
  • 5.15.86 to ≤ 5.15.*unaffected
  • 6.0.16 to ≤ 6.0.*unaffected
  • 6.1.2 to ≤ 6.1.*unaffected
  • 6.2 to ≤ *unaffected

References