* Re: [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry
2024-03-03 14:54 ` [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry Tetsuo Handa
@ 2024-03-03 23:53 ` Gao Xiang
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
2024-03-04 8:15 ` [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry Roberto Sassu
2 siblings, 0 replies; 9+ messages in thread
From: Gao Xiang @ 2024-03-03 23:53 UTC (permalink / raw)
To: Tetsuo Handa, syzbot, syzkaller-bugs, Gao Xiang, Chao Yu, Yue Hu,
Jeffle Xu
Cc: linux-erofs, linux-kernel
On 2024/3/3 22:54, Tetsuo Handa wrote:
> On 2024/02/20 19:40, Roberto Sassu wrote:
>> On Mon, 2024-02-19 at 22:41 -0800, syzbot wrote:
>>> Hello,
>>>
>>> syzbot found the following issue on:
>>>
>>> HEAD commit: 4f5e5092fdbf Merge tag 'net-6.8-rc5' of git://git.kernel.o..
>>> git tree: upstream
>>> console output: https://syzkaller.appspot.com/x/log.txt?x=135ba81c180000
>>> kernel config: https://syzkaller.appspot.com/x/.config?x=e3dd779fba027968
>>> dashboard link: https://syzkaller.appspot.com/bug?extid=7bc44a489f0ef0670bd5
>>> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>
>> I would add the VFS people in CC, in case they have some ideas.
>
> This is an erofs bug. Since the filesystem image in the reproducer
> is crafted, decompression generates bogus result and
> z_erofs_transform_plain() misbehaves.
Yes, thanks for looking into this. It seems it was introduced by
a new commit 1ca01520148a this cycle, let me find more clues and
make a fix for this.
Thanks,
Gao Xiang
>
> You can obtain a single-threaded reproducer from
> https://syzkaller.appspot.com/x/repro.c?x=1256096a180000 with below diff.
>
> ----------------------------------------
> --- old/1256096a180000.c
> +++ new/1256096a180000.c
> @@ -676,6 +676,6 @@
> syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
> /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
> /*offset=*/0ul);
> - loop();
> + execute_one();
> return 0;
> }
> ----------------------------------------
>
> With CONFIG_EROFS_FS_DEBUG=y, the reproducer hits DBG_BUGON().
> With debug printk() shown below, you can get output shown below.
>
> ----------------------------------------
> diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
> index d4cee95af14c..f221133a0731 100644
> --- a/fs/erofs/decompressor.c
> +++ b/fs/erofs/decompressor.c
> @@ -323,7 +323,11 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
> u8 *kin;
>
> - DBG_BUGON(rq->outputsize > rq->inputsize);
> + if (rq->outputsize > rq->inputsize) {
> + pr_err("rq->inputsize=%u rq->outputsize=%u\n", rq->inputsize, rq->outputsize);
> + pr_err("rq->pageofs_in=%u rq->pageofs_out=%u\n", rq->pageofs_in, rq->pageofs_out);
> + pr_err("nrpages_in=%u nrpages_out=%u\n", nrpages_in, nrpages_out);
> + }
> if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
> cur = bs - (rq->pageofs_out & (bs - 1));
> pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
> @@ -352,7 +356,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> do {
> no = (rq->pageofs_out + cur + pi) >> PAGE_SHIFT;
> po = (rq->pageofs_out + cur + pi) & ~PAGE_MASK;
> - DBG_BUGON(no >= nrpages_out);
> + if (no >= nrpages_out)
> + pr_err("no=%u nrpages_out=%u\n", no, nrpages_out);
> cnt = min(insz - pi, PAGE_SIZE - po);
> if (rq->out[no] == rq->in[ni]) {
> memmove(kin + po,
> @@ -366,7 +371,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> } while (pi < insz);
> kunmap_local(kin);
> }
> - DBG_BUGON(ni > nrpages_in);
> + if (ni > nrpages_in)
> + pr_err("ni=%u nrpages_in=%u\n", ni, nrpages_in);
> return 0;
> }
>
> ----------------------------------------
>
> ----------------------------------------
> [ 138.991810][ T2983] loop0: detected capacity change from 0 to 16
> [ 139.804002][ T2983] erofs: (device loop0): mounted with root inode @ nid 36.
> [ 139.810464][ T87] erofs: rq->inputsize=4096 rq->outputsize=8194
> [ 139.821540][ T87] erofs: rq->pageofs_in=0 rq->pageofs_out=0
> [ 139.824347][ T87] erofs: nrpages_in=1 nrpages_out=3
> [ 139.827008][ T87] erofs: ni=3 nrpages_in=1
> [ 139.873777][ T2983] =====================================================
> [ 139.881268][ T2983] BUG: KMSAN: uninit-value in ima_add_template_entry+0x626/0xa80
> ----------------------------------------
>
> #syz set subsystems: erofs
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH] erofs: fix uninitialized page cache reported by KMSAN
2024-03-03 14:54 ` [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry Tetsuo Handa
2024-03-03 23:53 ` Gao Xiang
@ 2024-03-04 3:53 ` Gao Xiang
2024-03-04 6:04 ` Gao Xiang
` (3 more replies)
2024-03-04 8:15 ` [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry Roberto Sassu
2 siblings, 4 replies; 9+ messages in thread
From: Gao Xiang @ 2024-03-04 3:53 UTC (permalink / raw)
To: linux-erofs
Cc: syzbot+7bc44a489f0ef0670bd5, Tetsuo Handa, syzkaller-bugs, LKML,
Roberto Sassu, linux-fsdevel, Gao Xiang
syzbot reports a KMSAN reproducer [1] which generates a crafted
filesystem image and causes IMA to read uninitialized page cache.
Later, (rq->outputsize > rq->inputsize) will be formally supported
after either large uncompressed pclusters (> block size) or big
lclusters are landed. However, currently there is no way to generate
such filesystems by using mkfs.erofs.
Thus, let's mark this condition as unsupported for now.
[1] https://lore.kernel.org/r/0000000000002be12a0611ca7ff8@google.com
Reported-by: syzbot+7bc44a489f0ef0670bd5@syzkaller.appspotmail.com
Fixes: 1ca01520148a ("erofs: refine z_erofs_transform_plain() for sub-page block support")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
fs/erofs/decompressor.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index d4cee95af14c..2ec9b2bb628d 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -323,7 +323,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
u8 *kin;
- DBG_BUGON(rq->outputsize > rq->inputsize);
+ if (rq->outputsize > rq->inputsize)
+ return -EOPNOTSUPP;
if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
cur = bs - (rq->pageofs_out & (bs - 1));
pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
--
2.39.3
^ permalink raw reply related [flat|nested] 9+ messages in thread* Re: [PATCH] erofs: fix uninitialized page cache reported by KMSAN
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
@ 2024-03-04 6:04 ` Gao Xiang
2024-03-04 6:51 ` [syzbot] [erofs] KMSAN: uninit-value in ima_add_template_entry syzbot
2024-03-04 17:51 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Sandeep Dhavale via Linux-erofs
` (2 subsequent siblings)
3 siblings, 1 reply; 9+ messages in thread
From: Gao Xiang @ 2024-03-04 6:04 UTC (permalink / raw)
To: linux-erofs, syzkaller-bugs
Cc: Tetsuo Handa, syzbot+7bc44a489f0ef0670bd5, Roberto Sassu, LKML
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test
On 2024/3/4 11:53, Gao Xiang wrote:
> syzbot reports a KMSAN reproducer [1] which generates a crafted
> filesystem image and causes IMA to read uninitialized page cache.
>
> Later, (rq->outputsize > rq->inputsize) will be formally supported
> after either large uncompressed pclusters (> block size) or big
> lclusters are landed. However, currently there is no way to generate
> such filesystems by using mkfs.erofs.
>
> Thus, let's mark this condition as unsupported for now.
>
> [1] https://lore.kernel.org/r/0000000000002be12a0611ca7ff8@google.com
>
> Reported-by: syzbot+7bc44a489f0ef0670bd5@syzkaller.appspotmail.com
> Fixes: 1ca01520148a ("erofs: refine z_erofs_transform_plain() for sub-page block support")
> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
> ---
> fs/erofs/decompressor.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
> index d4cee95af14c..2ec9b2bb628d 100644
> --- a/fs/erofs/decompressor.c
> +++ b/fs/erofs/decompressor.c
> @@ -323,7 +323,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
> u8 *kin;
>
> - DBG_BUGON(rq->outputsize > rq->inputsize);
> + if (rq->outputsize > rq->inputsize)
> + return -EOPNOTSUPP;
> if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
> cur = bs - (rq->pageofs_out & (bs - 1));
> pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: [PATCH] erofs: fix uninitialized page cache reported by KMSAN
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
2024-03-04 6:04 ` Gao Xiang
@ 2024-03-04 17:51 ` Sandeep Dhavale via Linux-erofs
2024-03-05 2:17 ` Yue Hu
2024-03-07 1:04 ` Chao Yu
3 siblings, 0 replies; 9+ messages in thread
From: Sandeep Dhavale via Linux-erofs @ 2024-03-04 17:51 UTC (permalink / raw)
To: Gao Xiang
Cc: syzbot+7bc44a489f0ef0670bd5, Tetsuo Handa, syzkaller-bugs, LKML,
Roberto Sassu, linux-fsdevel, linux-erofs
On Sun, Mar 3, 2024 at 7:54 PM Gao Xiang <hsiangkao@linux.alibaba.com> wrote:
>
> syzbot reports a KMSAN reproducer [1] which generates a crafted
> filesystem image and causes IMA to read uninitialized page cache.
>
> Later, (rq->outputsize > rq->inputsize) will be formally supported
> after either large uncompressed pclusters (> block size) or big
> lclusters are landed. However, currently there is no way to generate
> such filesystems by using mkfs.erofs.
>
> Thus, let's mark this condition as unsupported for now.
>
> [1] https://lore.kernel.org/r/0000000000002be12a0611ca7ff8@google.com
>
> Reported-by: syzbot+7bc44a489f0ef0670bd5@syzkaller.appspotmail.com
> Fixes: 1ca01520148a ("erofs: refine z_erofs_transform_plain() for sub-page block support")
> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
> ---
> fs/erofs/decompressor.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
> index d4cee95af14c..2ec9b2bb628d 100644
> --- a/fs/erofs/decompressor.c
> +++ b/fs/erofs/decompressor.c
> @@ -323,7 +323,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
> u8 *kin;
>
> - DBG_BUGON(rq->outputsize > rq->inputsize);
> + if (rq->outputsize > rq->inputsize)
> + return -EOPNOTSUPP;
> if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
> cur = bs - (rq->pageofs_out & (bs - 1));
> pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
> --
> 2.39.3
>
LGTM.
Reviewed-by: Sandeep Dhavale <dhavale@google.com>
Thanks,
Sandeep.
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: [PATCH] erofs: fix uninitialized page cache reported by KMSAN
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
2024-03-04 6:04 ` Gao Xiang
2024-03-04 17:51 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Sandeep Dhavale via Linux-erofs
@ 2024-03-05 2:17 ` Yue Hu
2024-03-07 1:04 ` Chao Yu
3 siblings, 0 replies; 9+ messages in thread
From: Yue Hu @ 2024-03-05 2:17 UTC (permalink / raw)
To: Gao Xiang
Cc: syzbot+7bc44a489f0ef0670bd5, Tetsuo Handa, syzkaller-bugs, LKML,
Roberto Sassu, linux-fsdevel, linux-erofs
On Mon, 4 Mar 2024 11:53:39 +0800
Gao Xiang <hsiangkao@linux.alibaba.com> wrote:
> syzbot reports a KMSAN reproducer [1] which generates a crafted
> filesystem image and causes IMA to read uninitialized page cache.
>
> Later, (rq->outputsize > rq->inputsize) will be formally supported
> after either large uncompressed pclusters (> block size) or big
> lclusters are landed. However, currently there is no way to generate
> such filesystems by using mkfs.erofs.
>
> Thus, let's mark this condition as unsupported for now.
>
> [1] https://lore.kernel.org/r/0000000000002be12a0611ca7ff8@google.com
>
> Reported-by: syzbot+7bc44a489f0ef0670bd5@syzkaller.appspotmail.com
> Fixes: 1ca01520148a ("erofs: refine z_erofs_transform_plain() for sub-page block support")
> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
> ---
> fs/erofs/decompressor.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
> index d4cee95af14c..2ec9b2bb628d 100644
> --- a/fs/erofs/decompressor.c
> +++ b/fs/erofs/decompressor.c
> @@ -323,7 +323,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
> u8 *kin;
>
> - DBG_BUGON(rq->outputsize > rq->inputsize);
> + if (rq->outputsize > rq->inputsize)
> + return -EOPNOTSUPP;
> if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
> cur = bs - (rq->pageofs_out & (bs - 1));
> pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
Reviewed-by: Yue Hu <huyue2@coolpad.com>
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: [PATCH] erofs: fix uninitialized page cache reported by KMSAN
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
` (2 preceding siblings ...)
2024-03-05 2:17 ` Yue Hu
@ 2024-03-07 1:04 ` Chao Yu
3 siblings, 0 replies; 9+ messages in thread
From: Chao Yu @ 2024-03-07 1:04 UTC (permalink / raw)
To: Gao Xiang, linux-erofs
Cc: syzbot+7bc44a489f0ef0670bd5, Tetsuo Handa, syzkaller-bugs, LKML,
Roberto Sassu, linux-fsdevel
On 2024/3/4 11:53, Gao Xiang wrote:
> syzbot reports a KMSAN reproducer [1] which generates a crafted
> filesystem image and causes IMA to read uninitialized page cache.
>
> Later, (rq->outputsize > rq->inputsize) will be formally supported
> after either large uncompressed pclusters (> block size) or big
> lclusters are landed. However, currently there is no way to generate
> such filesystems by using mkfs.erofs.
>
> Thus, let's mark this condition as unsupported for now.
>
> [1] https://lore.kernel.org/r/0000000000002be12a0611ca7ff8@google.com
>
> Reported-by: syzbot+7bc44a489f0ef0670bd5@syzkaller.appspotmail.com
> Fixes: 1ca01520148a ("erofs: refine z_erofs_transform_plain() for sub-page block support")
> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Thanks,
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry
2024-03-03 14:54 ` [syzbot] [integrity?] [lsm?] KMSAN: uninit-value in ima_add_template_entry Tetsuo Handa
2024-03-03 23:53 ` Gao Xiang
2024-03-04 3:53 ` [PATCH] erofs: fix uninitialized page cache reported by KMSAN Gao Xiang
@ 2024-03-04 8:15 ` Roberto Sassu
2 siblings, 0 replies; 9+ messages in thread
From: Roberto Sassu @ 2024-03-04 8:15 UTC (permalink / raw)
To: Tetsuo Handa, syzbot, syzkaller-bugs, Gao Xiang, Chao Yu, Yue Hu,
Jeffle Xu
Cc: linux-integrity, linux-erofs, linux-kernel, zohar
On Sun, 2024-03-03 at 23:54 +0900, Tetsuo Handa wrote:
> On 2024/02/20 19:40, Roberto Sassu wrote:
> > On Mon, 2024-02-19 at 22:41 -0800, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit: 4f5e5092fdbf Merge tag 'net-6.8-rc5' of git://git.kernel.o..
> > > git tree: upstream
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=135ba81c180000
> > > kernel config: https://syzkaller.appspot.com/x/.config?x=e3dd779fba027968
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=7bc44a489f0ef0670bd5
> > > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>
> > I would add the VFS people in CC, in case they have some ideas.
>
> This is an erofs bug. Since the filesystem image in the reproducer
> is crafted, decompression generates bogus result and
> z_erofs_transform_plain() misbehaves.
Thank you Tetsuo, and Gao Xiang for fixing it!
Roberto
> You can obtain a single-threaded reproducer from
> https://syzkaller.appspot.com/x/repro.c?x=1256096a180000 with below diff.
>
> ----------------------------------------
> --- old/1256096a180000.c
> +++ new/1256096a180000.c
> @@ -676,6 +676,6 @@
> syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
> /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
> /*offset=*/0ul);
> - loop();
> + execute_one();
> return 0;
> }
> ----------------------------------------
>
> With CONFIG_EROFS_FS_DEBUG=y, the reproducer hits DBG_BUGON().
> With debug printk() shown below, you can get output shown below.
>
> ----------------------------------------
> diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
> index d4cee95af14c..f221133a0731 100644
> --- a/fs/erofs/decompressor.c
> +++ b/fs/erofs/decompressor.c
> @@ -323,7 +323,11 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> unsigned int cur = 0, ni = 0, no, pi, po, insz, cnt;
> u8 *kin;
>
> - DBG_BUGON(rq->outputsize > rq->inputsize);
> + if (rq->outputsize > rq->inputsize) {
> + pr_err("rq->inputsize=%u rq->outputsize=%u\n", rq->inputsize, rq->outputsize);
> + pr_err("rq->pageofs_in=%u rq->pageofs_out=%u\n", rq->pageofs_in, rq->pageofs_out);
> + pr_err("nrpages_in=%u nrpages_out=%u\n", nrpages_in, nrpages_out);
> + }
> if (rq->alg == Z_EROFS_COMPRESSION_INTERLACED) {
> cur = bs - (rq->pageofs_out & (bs - 1));
> pi = (rq->pageofs_in + rq->inputsize - cur) & ~PAGE_MASK;
> @@ -352,7 +356,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> do {
> no = (rq->pageofs_out + cur + pi) >> PAGE_SHIFT;
> po = (rq->pageofs_out + cur + pi) & ~PAGE_MASK;
> - DBG_BUGON(no >= nrpages_out);
> + if (no >= nrpages_out)
> + pr_err("no=%u nrpages_out=%u\n", no, nrpages_out);
> cnt = min(insz - pi, PAGE_SIZE - po);
> if (rq->out[no] == rq->in[ni]) {
> memmove(kin + po,
> @@ -366,7 +371,8 @@ static int z_erofs_transform_plain(struct z_erofs_decompress_req *rq,
> } while (pi < insz);
> kunmap_local(kin);
> }
> - DBG_BUGON(ni > nrpages_in);
> + if (ni > nrpages_in)
> + pr_err("ni=%u nrpages_in=%u\n", ni, nrpages_in);
> return 0;
> }
>
> ----------------------------------------
>
> ----------------------------------------
> [ 138.991810][ T2983] loop0: detected capacity change from 0 to 16
> [ 139.804002][ T2983] erofs: (device loop0): mounted with root inode @ nid 36.
> [ 139.810464][ T87] erofs: rq->inputsize=4096 rq->outputsize=8194
> [ 139.821540][ T87] erofs: rq->pageofs_in=0 rq->pageofs_out=0
> [ 139.824347][ T87] erofs: nrpages_in=1 nrpages_out=3
> [ 139.827008][ T87] erofs: ni=3 nrpages_in=1
> [ 139.873777][ T2983] =====================================================
> [ 139.881268][ T2983] BUG: KMSAN: uninit-value in ima_add_template_entry+0x626/0xa80
> ----------------------------------------
>
> #syz set subsystems: erofs
^ permalink raw reply [flat|nested] 9+ messages in thread