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Syzkaller is coverage-guided system call fuzzer for Linux kernel

https://github.com/google/syzkaller

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Bai, Shuangpeng

3:05 PM

[BUG] KASAN: null-ptr-deref in gfs2_remove_from_journal

Hi Kernel Maintainers, Our tool found a new kernel bug. Please see the details below. Kernel commit:

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[BUG] KASAN: null-ptr-deref in gfs2_remove_from_journal

Hi Kernel Maintainers, Our tool found a new kernel bug. Please see the details below. Kernel commit:

3:05 PM

Yunseong Kim, … Sebastian Andrzej Siewior7

6:26 AM

[Question] Detecting Sleep-in-Atomic Context in PREEMPT_RT via RV (Runtime Verification) monitor rtapp:sleep

On 2025-12-02 12:14:09 [+0100], Nam Cao wrote: > > RV is not a static checker, it is a run-time

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[Question] Detecting Sleep-in-Atomic Context in PREEMPT_RT via RV (Runtime Verification) monitor rtapp:sleep

On 2025-12-02 12:14:09 [+0100], Nam Cao wrote: > > RV is not a static checker, it is a run-time

6:26 AM

eanut 6, Aleksandr Nogikh2

5:04 AM

How to download corpus from syzkaller.appspot.com instances

Hi, On Tue, Dec 2, 2025 at 11:02 AM eanut 6 <jiakai...@gmail.com> wrote: > > Hi, >

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How to download corpus from syzkaller.appspot.com instances

Hi, On Tue, Dec 2, 2025 at 11:02 AM eanut 6 <jiakai...@gmail.com> wrote: > > Hi, >

5:04 AM

github-merge-queue[bot]964

Dec 1

[google/syzkaller]

Branch: refs/heads/gh-readonly-queue/master/pr-6485-d4611817041647831162ed6dedfa7bc0ad160387 Home:

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[google/syzkaller]

Branch: refs/heads/gh-readonly-queue/master/pr-6485-d4611817041647831162ed6dedfa7bc0ad160387 Home:

Dec 1

Dec 1

[google/syzkaller] d5d69b: tools/docker: update to debian trixie

Branch: refs/heads/gh-readonly-queue/master/pr-6485-d4611817041647831162ed6dedfa7bc0ad160387 Home:

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[google/syzkaller] d5d69b: tools/docker: update to debian trixie

Branch: refs/heads/gh-readonly-queue/master/pr-6485-d4611817041647831162ed6dedfa7bc0ad160387 Home:

Dec 1

Dec 1

[google/syzkaller] d46118: pkg/report: ignore the fast_dput/dput frames

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] d46118: pkg/report: ignore the fast_dput/dput frames

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Dec 1

dependabot[bot]

Dec 1

[google/syzkaller] 58a047: mod: bump google.golang.org/api from 0.252.0 to 0....

Branch: refs/heads/dependabot/go_modules/google.golang.org/api-0.256.0 Home: https://github.com/

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[google/syzkaller] 58a047: mod: bump google.golang.org/api from 0.252.0 to 0....

Branch: refs/heads/dependabot/go_modules/google.golang.org/api-0.256.0 Home: https://github.com/

Dec 1

Aleksandr Nogikh2

Dec 1

[google/syzkaller] 3887d6: syz-cluster: basic support for finding invalidation

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 3887d6: syz-cluster: basic support for finding invalidation

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Dec 1

dependabot[bot]2

Dec 1

[google/syzkaller] 7d8e57: mod: bump golang.org/x/sys from 0.37.0 to 0.38.0

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 7d8e57: mod: bump golang.org/x/sys from 0.37.0 to 0.38.0

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Dec 1

Dec 1

SSH Timeout on FreeBSD

Good Afternoon, I want to preface that I read the troubleshooting tips and those did not solve my

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SSH Timeout on FreeBSD

Good Afternoon, I want to preface that I read the troubleshooting tips and those did not solve my

Dec 1

Dec 1

SSH Timeout Error When Launching Syz-Manager

First off, I have checked the the troubleshooting guide and m question is not answered. Here is my

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SSH Timeout Error When Launching Syz-Manager

First off, I have checked the the troubleshooting guide and m question is not answered. Here is my

Dec 1

dependabot[bot]

Nov 30

[google/syzkaller] 581c9f: mod: bump golang.org/x/sys from 0.37.0 to 0.38.0

Branch: refs/heads/dependabot/go_modules/golang.org/x/sys-0.38.0 Home: https://github.com/google/

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[google/syzkaller] 581c9f: mod: bump golang.org/x/sys from 0.37.0 to 0.38.0

Branch: refs/heads/dependabot/go_modules/golang.org/x/sys-0.38.0 Home: https://github.com/google/

Nov 30

dependabot[bot]

Nov 30

[google/syzkaller] e5bceb: mod: bump google.golang.org/api from 0.252.0 to 0....

Branch: refs/heads/dependabot/go_modules/google.golang.org/api-0.256.0 Home: https://github.com/

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[google/syzkaller] e5bceb: mod: bump google.golang.org/api from 0.252.0 to 0....

Branch: refs/heads/dependabot/go_modules/google.golang.org/api-0.256.0 Home: https://github.com/

Nov 30

dependabot[bot]

Nov 30

[google/syzkaller] 3c518d: mod: bump k8s.io/apimachinery from 0.34.1 to 0.34.2

Branch: refs/heads/dependabot/go_modules/k8s.io/apimachinery-0.34.2 Home: https://github.com/google/

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[google/syzkaller] 3c518d: mod: bump k8s.io/apimachinery from 0.34.1 to 0.34.2

Branch: refs/heads/dependabot/go_modules/k8s.io/apimachinery-0.34.2 Home: https://github.com/google/

Nov 30

dependabot[bot]

Nov 30

[google/syzkaller] 0d473d: mod: bump google.golang.org/grpc from 1.76.0 to 1....

Branch: refs/heads/dependabot/go_modules/google.golang.org/grpc-1.77.0 Home: https://github.com/

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[google/syzkaller] 0d473d: mod: bump google.golang.org/grpc from 1.76.0 to 1....

Branch: refs/heads/dependabot/go_modules/google.golang.org/grpc-1.77.0 Home: https://github.com/

Nov 30

Alexander Potapenko2

Nov 28

[google/syzkaller] 01c07b: executor: apply optnone to guest_handle_nested_vme...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 01c07b: executor: apply optnone to guest_handle_nested_vme...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 28

Aleksandr Nogikh2

Nov 28

[google/syzkaller] d1b870: syz-cluster: monitor the fsdevel list

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] d1b870: syz-cluster: monitor the fsdevel list

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 28

Aleksandr Nogikh

Nov 28

[google/syzkaller] 7d1d00: syz-cluster: log HEAD commit date during triage

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 7d1d00: syz-cluster: log HEAD commit date during triage

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 28

Harshit Mogalapalli, … Dmitry Vyukov6

Nov 27

Fail to fuzz with latest Syzkaller

It may be that Selinux policy in the latest images prohibits PROT_WRITE|PROT_EXEC mappings. You may

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Fail to fuzz with latest Syzkaller

It may be that Selinux policy in the latest images prohibits PROT_WRITE|PROT_EXEC mappings. You may

Nov 27

David Lee, … Aleksandr Nogikh4

Nov 27

does syzkaller always follow syscall description when mutate syscall arguments?

On Fri, Nov 21, 2025 at 7:59 PM David Lee <sayni...@gmail.com> wrote: > > Hi Alexander,

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does syzkaller always follow syscall description when mutate syscall arguments?

On Fri, Nov 21, 2025 at 7:59 PM David Lee <sayni...@gmail.com> wrote: > > Hi Alexander,

Nov 27

Tetsuo Handa, Aleksandr Nogikh10

Nov 27

Can we specify repro to use for "#syz test" request?

On 2025/11/27 19:26, Tetsuo Handa wrote: > If syzbot starts opening new bug reports, developers

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Can we specify repro to use for "#syz test" request?

On 2025/11/27 19:26, Tetsuo Handa wrote: > If syzbot starts opening new bug reports, developers

Nov 27

Florent Revest2

Nov 26

[google/syzkaller] e83313: executor: improve startup time on machines with ma...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] e83313: executor: improve startup time on machines with ma...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 26

Aleksandr Nogikh2

Nov 26

[google/syzkaller] ef806b: syz-cluster: log the tip of the polled branch

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] ef806b: syz-cluster: log the tip of the polled branch

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 26

Aleksandr Nogikh2

Nov 26

[google/syzkaller] c116fe: pkg/report: adapt to the new WARN format

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] c116fe: pkg/report: adapt to the new WARN format

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 26

Alexander Potapenko2

Nov 24

[google/syzkaller] 718d1e: sys/linux: update kvm_guest_addrs with addresses f...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 718d1e: sys/linux: update kvm_guest_addrs with addresses f...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 24

Aleksandr Nogikh2

Nov 24

[google/syzkaller] 8f574c: pkg/csource: exclude auto-generated syscalls from ...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 8f574c: pkg/csource: exclude auto-generated syscalls from ...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 24

Tetsuo Handa, Aleksandr Nogikh5

Nov 24

[PATCH] sys/linux/filesystem: remove hpfs check=none mount option

Can we move this forward? Since syzkaller is not the only fuzzer, and syz_execute_func() could still

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[PATCH] sys/linux/filesystem: remove hpfs check=none mount option

Can we move this forward? Since syzkaller is not the only fuzzer, and syz_execute_func() could still

Nov 24

Nov 24

[google/syzkaller] 080cae: pkg/hash: support hashing strings

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] 080cae: pkg/hash: support hashing strings

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 24

Alexander Potapenko2

Nov 21

[google/syzkaller] b301f8: executor: sys/linux: implement SYZOS_API_NESTED_AM...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] b301f8: executor: sys/linux: implement SYZOS_API_NESTED_AM...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 21

Alexander Potapenko2

Nov 21

[google/syzkaller] accb0c: executor: sys/linux: implement SYZOS_API_NESTED_IN...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

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[google/syzkaller] accb0c: executor: sys/linux: implement SYZOS_API_NESTED_IN...

Branch: refs/heads/master Home: https://github.com/google/syzkaller Commit:

Nov 21

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