Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ARM: davinci: da850-evm: Avoid NULL pointer dereference With newer versions of GCC, there is a panic in da850_evm_config_emac() when booting multi_v5_defconfig in QEMU under the palmetto-bmc machine: Unable to handle kernel NULL pointer dereference at virtual address 00000020 pgd = (ptrval) [00000020] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0 #1 Hardware name: Generic DT based system PC is at da850_evm_config_emac+0x1c/0x120 LR is at do_one_initcall+0x50/0x1e0 The emac_pdata pointer in soc_info is NULL because davinci_soc_info only gets populated on davinci machines but da850_evm_config_emac() is called on all machines via device_initcall(). Move the rmii_en assignment below the machine check so that it is only dereferenced when running on a supported SoC.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bae105879f2f2404155da6f50b3636193d228a62 before c06f476e5b74bcabb8c4a2fba55864a37e62843b; affected bae105879f2f2404155da6f50b3636193d228a62 before a12b356d45cbb6e8a1b718d1436b3d6239a862f3; affected bae105879f2f2404155da6f50b3636193d228a62 before c64e2ed5cc376e137e572babfd2edc38b2cfb61b; affected bae105879f2f2404155da6f50b3636193d228a62 before 89931d4762572aaee6edbe5673d41f8082de110f; affected bae105879f2f2404155da6f50b3636193d228a62 before 0a312ec66a03133d28570f07bc52749ccfef54da; affected bae105879f2f2404155da6f50b3636193d228a62 before 0940795c6834fbe7705acc5c3d4b2f7a5f67527a; affected bae105879f2f2404155da6f50b3636193d228a62 before c5628533a3ece64235d04fe11ec44d2be99e423d; affected bae105879f2f2404155da6f50b3636193d228a62 before 83a1cde5c74bfb44b49cb2a940d044bb2380f4ea |
| Linux / Linux | affected 2.6.33; unaffected 0 before 2.6.33; unaffected 4.9.311 through 4.9.*; unaffected 4.14.276 through 4.14.*; unaffected 4.19.239 through 4.19.*; unaffected 5.4.190 through 5.4.*; unaffected 5.10.112 through 5.10.*; unaffected 5.15.35 through 5.15.*; unaffected 5.17.4 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c06f476e5b74bcabb8c4a2fba55864a37e62843b
- https://git.kernel.org/stable/c/a12b356d45cbb6e8a1b718d1436b3d6239a862f3
- https://git.kernel.org/stable/c/c64e2ed5cc376e137e572babfd2edc38b2cfb61b
- https://git.kernel.org/stable/c/89931d4762572aaee6edbe5673d41f8082de110f
- https://git.kernel.org/stable/c/0a312ec66a03133d28570f07bc52749ccfef54da
- https://git.kernel.org/stable/c/0940795c6834fbe7705acc5c3d4b2f7a5f67527a
- https://git.kernel.org/stable/c/c5628533a3ece64235d04fe11ec44d2be99e423d
- https://git.kernel.org/stable/c/83a1cde5c74bfb44b49cb2a940d044bb2380f4ea
ADP enrichment
No English description supplied.
No references supplied.