Description of problem: Working in VS Code. SELinux is preventing code from using the 'execheap' accesses on a process. ***** Plugin allow_execheap (53.1 confidence) suggests ******************** If you do not think code should need to map heap memory that is both writable and executable. Then you need to report a bug. This is a potentially dangerous access. Do contact your security administrator and report this issue. ***** Plugin catchall_boolean (42.6 confidence) suggests ****************** If you want to allow selinuxuser to execheap Then you must tell SELinux about this by enabling the 'selinuxuser_execheap' boolean. Do setsebool -P selinuxuser_execheap 1 ***** Plugin catchall (5.76 confidence) suggests ************************** If you believe that code should be allowed execheap access on processes labeled unconfined_t by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'code' --raw | audit2allow -M my-code # semodule -X 300 -i my-code.pp Additional Information: Source Context unconfined_u:unconfined_r:unconfined_t:s0- s0:c0.c1023 Target Context unconfined_u:unconfined_r:unconfined_t:s0- s0:c0.c1023 Target Objects Unknown [ process ] Source code Source Path code Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-39.5-1.fc39.noarch Local Policy RPM selinux-policy-targeted-39.5-1.fc39.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 6.7.9-200.fc39.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Mar 6 19:35:04 UTC 2024 x86_64 Alert Count 128 First Seen 2024-04-17 07:05:37 EDT Last Seen 2024-04-17 07:05:37 EDT Local ID 94d0ef0c-2b2b-463f-89e6-e8a8659973c4 Raw Audit Messages type=AVC msg=audit(1713351937.412:150807): avc: denied { execheap } for pid=3995534 comm="code" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0 Hash: code,unconfined_t,unconfined_t,process,execheap Version-Release number of selected component: selinux-policy-targeted-39.5-1.fc39.noarch Additional info: reporter: libreport-2.17.11 package: selinux-policy-targeted-39.5-1.fc39.noarch comment: Working in VS Code. kernel: 6.7.9-200.fc39.x86_64 component: selinux-policy reason: SELinux is preventing code from using the 'execheap' accesses on a process. hashmarkername: setroubleshoot type: libreport component: selinux-policy
Created attachment 2027390 [details] File: os_info
Created attachment 2027391 [details] File: description
The Linux implementation of mprotect (unlike POSIX) allows changing the access protection of memory on the heap, e. g. allocated using malloc. This AVC denial indicates that heap memory was supposed to be made executable. While the permission can be granted turning the selinuxuser_execheap boolean on as suggested by setroubleshoot, it should not be done without a thorough code review as in most cases it indicates a bug in the code and you should consider reporting a bug on the related component. If anonymous executable memory is needed, another method should be considered, e. g. allocating memory using mmap. Please refer to the boolean description: # semanage boolean -l|grep execheap selinuxuser_execheap (off , off) Allow unconfined executables to make their heap memory executable. Doing this is a really bad idea. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla