Bug 218205
| Summary: | kernel 6.6.3 NULL pointer dereference send UDP | ||
|---|---|---|---|
| Product: | Networking | Reporter: | Jiří Netolický (netolish) |
| Component: | IPV4 | Assignee: | Stephen Hemminger (stephen) |
| Status: | RESOLVED PATCH_ALREADY_AVAILABLE | ||
| Severity: | normal | CC: | holger, mike, sam |
| Priority: | P3 | ||
| Hardware: | Intel | ||
| OS: | Linux | ||
| Kernel Version: | Subsystem: | ||
| Regression: | No | Bisected commit-id: | |
| Attachments: |
NULL pointer error log
Photo of kernel panic screen BUG kernel log. |
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Created attachment 305507 [details]
Photo of kernel panic screen
If this is a hardened profile then the likely fix is: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=45b3fae4675d Created attachment 305519 [details]
BUG kernel log.
Just a me too - kernel log attached. This is not a hardened profile. Identical .config to 6.6.2 which boots and runs fine. (In reply to Holger Hoffstätte from comment #2) > If this is a hardened profile then the likely fix is: > https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/ > ?id=45b3fae4675d It is gentoo-source kernel - vanila kernel with few gentoo patches https://dev.gentoo.org/~mpagano/genpatches/. I only sign kernel modules with my private key. I try your recommended patch and it seems it help. System booted without any kernel errors and works fine. Thank you very much. (In reply to Mike Civil from comment #4) > Just a me too - kernel log attached. This is not a hardened profile. > Identical .config to 6.6.2 which boots and runs fine. It does not explicitly need to be a hardended profile - anybody can enable the CONFIG_RANDSTRUCT_* options (except for NONE, obviously) and that is the root of the problem. Apply the mentioned patch or disable structure layout randomization and 6.6.3 should work just fine. (In reply to Holger Hoffstätte from comment #6) > It does not explicitly need to be a hardended profile - anybody can enable > the CONFIG_RANDSTRUCT_* options (except for NONE, obviously) and that is the > root of the problem. Apply the mentioned patch or disable structure layout > randomization and 6.6.3 should work just fine. Thanks. Am now at the machine, applied the patch and confirmed it now boots fine with 6.6.3. |
Created attachment 305506 [details] NULL pointer error log In new 6.6.3 kernel on Gentoo during start chronyd kernel NULL pointer message is show and after a while system hangs-up with kernel panic. 6.6.2 version works fine.