* Re: [syzbot] [comedi?] KMSAN: kernel-infoleak in do_insn_ioctl [not found] <20250725112120.1528e072@ian-deb> @ 2025-07-25 10:51 ` syzbot 0 siblings, 0 replies; 2+ messages in thread From: syzbot @ 2025-07-25 10:51 UTC (permalink / raw) To: abbotti, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+a5e45f768aab5892da5d@syzkaller.appspotmail.com Tested-by: syzbot+a5e45f768aab5892da5d@syzkaller.appspotmail.com Tested on: commit: 2942242d Merge tag 'mm-hotfixes-stable-2025-07-24-18-0.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12fb94f0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7753c32e11ff6a95 dashboard link: https://syzkaller.appspot.com/bug?extid=a5e45f768aab5892da5d compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 patch: https://syzkaller.appspot.com/x/patch.diff?x=151690a2580000 Note: testing is done by a robot and is best-effort only. ^ permalink raw reply [flat|nested] 2+ messages in thread
* syztest
@ 2025-07-24 20:27 Arnaud Lecomte
2025-07-24 21:05 ` [syzbot] [comedi?] KMSAN: kernel-infoleak in do_insn_ioctl syzbot
0 siblings, 1 reply; 2+ messages in thread
From: Arnaud Lecomte @ 2025-07-24 20:27 UTC (permalink / raw)
To: syzbot+a5e45f768aab5892da5d; +Cc: linux-kernel, syzkaller-bugs
#syz test
--- a/drivers/comedi/comedi_fops.c
+++ b/drivers/comedi/comedi_fops.c
@@ -1636,7 +1636,7 @@ static int do_insn_ioctl(struct comedi_device *dev,
n_data = MAX_SAMPLES;
}
- data = kmalloc_array(n_data, sizeof(unsigned int), GFP_KERNEL);
+ data = kcalloc(n_data, sizeof(unsigned int), GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto error;
--
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [syzbot] [comedi?] KMSAN: kernel-infoleak in do_insn_ioctl 2025-07-24 20:27 syztest Arnaud Lecomte @ 2025-07-24 21:05 ` syzbot 0 siblings, 0 replies; 2+ messages in thread From: syzbot @ 2025-07-24 21:05 UTC (permalink / raw) To: contact, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+a5e45f768aab5892da5d@syzkaller.appspotmail.com Tested-by: syzbot+a5e45f768aab5892da5d@syzkaller.appspotmail.com Tested on: commit: dd9c1732 Merge tag 'sound-6.16' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14cc10a2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7753c32e11ff6a95 dashboard link: https://syzkaller.appspot.com/bug?extid=a5e45f768aab5892da5d compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 patch: https://syzkaller.appspot.com/x/patch.diff?x=13a410a2580000 Note: testing is done by a robot and is best-effort only. ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <20250725112120.1528e072@ian-deb>
2025-07-25 10:51 ` [syzbot] [comedi?] KMSAN: kernel-infoleak in do_insn_ioctl syzbot
2025-07-24 20:27 syztest Arnaud Lecomte
2025-07-24 21:05 ` [syzbot] [comedi?] KMSAN: kernel-infoleak in do_insn_ioctl syzbot
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