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CVE-2022-48770

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CVE-2022-48770

Published: Jun 20, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.

VendorProductVersions

Linux

Linux

affected
fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 - < ff6bdc205fd0a83bd365405d4e31fb5905826996
affected
fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 - < 0bcd484587b3b3092e448d27dc369e347e1810c3
affected
fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 - < b82ef4985a6d05e80f604624332430351df7b79a
affected
fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 - < b992f01e66150fc5e90be4a96f5eb8e634c8249e

Linux

Linux

affected
5.9
unaffected
0 - < 5.9
unaffected
5.10.96 - <= 5.10.*
unaffected
5.15.19 - <= 5.15.*
unaffected
5.16.5 - <= 5.16.*

+1 more versions

References

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