Re: [syzbot] [fbdev?] KASAN: vmalloc-out-of-bounds Write in imageblit (4)

2024-09-04 Thread syzbot
syzbot has found a reproducer for the following issue on: HEAD commit:c7fb1692dc01 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11742d6398 kernel config: https://syzkaller.appspot.com/x/.config?x=660f6eb

BUG: KASAN: vmalloc-out-of-bounds Write in imageblit

2024-08-25 Thread Juefei Pu
Hello, We found the following issue using syzkaller on Linux v6.10. In `fast_imageblit`, there is an out-of-bounds memory access when executing `*dst++ = colortab[(*src >> 7) & bit_mask];` Although Syzbot has found a similar bug (https://syzkaller.appspot.com/bug?extid=3d3864c27a5e770e7654), the b

[syzbot] [fbdev?] KASAN: vmalloc-out-of-bounds Write in imageblit (4)

2024-08-21 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:670c12ce09a8 Merge tag 'for-6.11/dm-fixes' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11d41cdd98 kernel config: https://syzkaller.appspot.com/x/.config?x=7229118d88b4a71b das

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-07-31 Thread Khalid Masum
On 7/31/22 16:54, Helge Deller wrote: * Khalid Masum : On 7/30/22 23:25, Helge Deller wrote: On 7/29/22 08:51, Khalid Masum wrote: Here is a simplified reproducer for the issue: https://gist.githubusercontent.com/Labnann/923d6b9b3a19848fc129637b839b8a55/raw/a68271fcc724569735fe27f80817e561b3f

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-07-31 Thread Helge Deller
* Khalid Masum : > On 7/30/22 23:25, Helge Deller wrote: > > On 7/29/22 08:51, Khalid Masum wrote: > > > Here is a simplified reproducer for the issue: > > > > > > https://gist.githubusercontent.com/Labnann/923d6b9b3a19848fc129637b839b8a55/raw/a68271fcc724569735fe27f80817e561b3ff629a/reproducer.c >

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-07-31 Thread Khalid Masum
On 7/30/22 23:25, Helge Deller wrote: On 7/29/22 08:51, Khalid Masum wrote: Here is a simplified reproducer for the issue: https://gist.githubusercontent.com/Labnann/923d6b9b3a19848fc129637b839b8a55/raw/a68271fcc724569735fe27f80817e561b3ff629a/reproducer.c The reproducer does this: Thanks f

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-07-30 Thread Helge Deller
On 7/29/22 08:51, Khalid Masum wrote: > Here is a simplified reproducer for the issue: > > https://gist.githubusercontent.com/Labnann/923d6b9b3a19848fc129637b839b8a55/raw/a68271fcc724569735fe27f80817e561b3ff629a/reproducer.c The reproducer does this: ioctl(3, TIOCLINUX, TIOCL_SETSEL, selection: xs

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-07-29 Thread Khalid Masum
Here is a simplified reproducer for the issue: https://gist.githubusercontent.com/Labnann/923d6b9b3a19848fc129637b839b8a55/raw/a68271fcc724569735fe27f80817e561b3ff629a/reproducer.c

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-01-21 Thread syzbot
syzbot has bisected this issue to: commit 0499f419b76f94ede08304aad5851144813ac55c Author: Javier Martinez Canillas Date: Mon Jan 10 09:56:25 2022 + video: vga16fb: Only probe for EGA and VGA 16 color graphic cards bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14c71e37b

Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2022-01-21 Thread syzbot
syzbot has found a reproducer for the following issue on: HEAD commit:7fc5253f5a13 Add linux-next specific files for 20220120 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1638527070 kernel config: https://syzkaller.appspot.com/x/.config?x=94e8da4df9

[syzbot] KASAN: vmalloc-out-of-bounds Write in imageblit (2)

2021-11-19 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:fa55b7dcdc43 Linux 5.16-rc1 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15fe2569b0 kernel config: https://syzkaller.appspot.com/x/.config?x=6d3b8fd1977c1e73 dashboard link: https://syzkaller.ap

Re: KASAN: vmalloc-out-of-bounds Write in imageblit

2021-10-26 Thread Hao Sun
Hi, This bug can still be triggered repeatedly on the latest Linux. HEAD commit: 519d81956ee2 Linux 5.15-rc6 git tree: upstream console output: https://drive.google.com/file/d/17xFIX8JgBxamy8iUnUTAdcVvaASuhqxr/view?usp=sharing kernel config: https://drive.google.com/file/d/12PUnxIM1EPBgW4ZJmI7WJ

KASAN: vmalloc-out-of-bounds Write in imageblit

2021-10-06 Thread Hao Sun
Hello, When using Healer to fuzz the latest Linux kernel, the following crash was triggered. HEAD commit: 42d43c92fc57 Merge branch 'for-linus' git tree: upstream console output: https://drive.google.com/file/d/1fV8jSOKPspCPI-4i7Ee_FJIPIvz24MYu/view?usp=sharing kernel config: https://drive.goog

Re: KASAN: vmalloc-out-of-bounds Write in imageblit

2021-02-15 Thread syzbot
syzbot has found a reproducer for the following issue on: HEAD commit:f40ddce8 Linux 5.11 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14216df4d0 kernel config: https://syzkaller.appspot.com/x/.config?x=51ab7ccac30c dashboard link: https://syzkall

KASAN: vmalloc-out-of-bounds Write in imageblit

2021-01-06 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:6207214a Merge tag 'afs-fixes-04012021' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17d0c7a8d0 kernel config: https://syzkaller.appspot.com/x/.config?x=104b0cac547b2149 das