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* [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned @ 2023-06-25 15:52 bruno at clisp dot org 2023-06-25 15:52 ` [Bug libc/30584] " bruno at clisp dot org ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: bruno at clisp dot org @ 2023-06-25 15:52 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 Bug ID: 30584 Summary: initstate and initstate_r crash when the state argument is unaligned Product: glibc Version: 2.36 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libc Assignee: unassigned at sourceware dot org Reporter: bruno at clisp dot org CC: drepper.fsp at gmail dot com Target Milestone: --- Created attachment 14947 --> https://sourceware.org/bugzilla/attachment.cgi?id=14947&action=edit test case foo1.c On Linux/SPARC (both in 64-bit mode and in 32-bit mode), the initstate() and initstate_r() functions crash when the state argument is unaligned. The specification of initstate() in https://pubs.opengroup.org/onlinepubs/9699919799/functions/initstate.html and the documentation of initstate() and initstate_r() in https://www.gnu.org/software/libc/manual/html_node/BSD-Random.html require merely a byte array. So, passing an aligned byte array (of size 128 or more) is allowed. How to reproduce: Remote login to cfarm105.cfarm.net. $ gcc -Wall foo1.c $ ./a.out Bus error $ gcc -m32 -Wall foo1.c $ ./a.out Bus error $ gcc -Wall foo2.c $ ./a.out Bus error $ gcc -m32 -Wall foo2.c $ ./a.out Bus error -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/30584] initstate and initstate_r crash when the state argument is unaligned 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org @ 2023-06-25 15:52 ` bruno at clisp dot org 2023-06-25 15:53 ` bruno at clisp dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bruno at clisp dot org @ 2023-06-25 15:52 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 --- Comment #1 from Bruno Haible <bruno at clisp dot org> --- Created attachment 14948 --> https://sourceware.org/bugzilla/attachment.cgi?id=14948&action=edit test case foo2.c -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/30584] initstate and initstate_r crash when the state argument is unaligned 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org 2023-06-25 15:52 ` [Bug libc/30584] " bruno at clisp dot org @ 2023-06-25 15:53 ` bruno at clisp dot org 2023-06-25 15:54 ` bruno at clisp dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bruno at clisp dot org @ 2023-06-25 15:53 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 Bruno Haible <bruno at clisp dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- Host| |sparc64-unknown-linux-gnu Build| |sparc64-unknown-linux-gnu -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/30584] initstate and initstate_r crash when the state argument is unaligned 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org 2023-06-25 15:52 ` [Bug libc/30584] " bruno at clisp dot org 2023-06-25 15:53 ` bruno at clisp dot org @ 2023-06-25 15:54 ` bruno at clisp dot org 2023-06-25 23:38 ` ppluzhnikov at google dot com 2023-07-04 9:41 ` schwab@linux-m68k.org 4 siblings, 0 replies; 6+ messages in thread From: bruno at clisp dot org @ 2023-06-25 15:54 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 --- Comment #2 from Bruno Haible <bruno at clisp dot org> --- I meant: Passing an *unaligned* byte array is allowed. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/30584] initstate and initstate_r crash when the state argument is unaligned 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org ` (2 preceding siblings ...) 2023-06-25 15:54 ` bruno at clisp dot org @ 2023-06-25 23:38 ` ppluzhnikov at google dot com 2023-07-04 9:41 ` schwab@linux-m68k.org 4 siblings, 0 replies; 6+ messages in thread From: ppluzhnikov at google dot com @ 2023-06-25 23:38 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 Paul Pluzhnikov <ppluzhnikov at google dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2023-06-25 CC| |ppluzhnikov at google dot com Ever confirmed|0 |1 Status|UNCONFIRMED |NEW -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/30584] initstate and initstate_r crash when the state argument is unaligned 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org ` (3 preceding siblings ...) 2023-06-25 23:38 ` ppluzhnikov at google dot com @ 2023-07-04 9:41 ` schwab@linux-m68k.org 4 siblings, 0 replies; 6+ messages in thread From: schwab@linux-m68k.org @ 2023-07-04 9:41 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=30584 --- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> --- This is inherited from BSD, which documents that the state array needs to be uint32_t aligned. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-07-04 9:41 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-06-25 15:52 [Bug libc/30584] New: initstate and initstate_r crash when the state argument is unaligned bruno at clisp dot org 2023-06-25 15:52 ` [Bug libc/30584] " bruno at clisp dot org 2023-06-25 15:53 ` bruno at clisp dot org 2023-06-25 15:54 ` bruno at clisp dot org 2023-06-25 23:38 ` ppluzhnikov at google dot com 2023-07-04 9:41 ` schwab@linux-m68k.org
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