* [PATCH v3 0/2] net: sched: initialize struct tc_ife to fix kernel-infoleak
@ 2025-11-06 19:28 Ranganath V N
0 siblings, 0 replies; 2+ messages in thread
From: Ranganath V N @ 2025-11-06 19:28 UTC (permalink / raw)
To: davem, edumazet, horms, jhs, jiri, kuba, pabeni, xiyou.wangcong
Cc: vnranganath.20, david.hunter.linux, khalid, linux-kernel, netdev,
skhan, syzbot+0c85cae3350b7d486aee
This series addresses the uninitialization of the struct which has
2 btes of padding. And copying this uninitialized data to userspace
can leak info from kernel memory.
This sereies ensure all members and padding are cleared prior to
begin copied.
This change silences the KMSAN report and prevents potential information
leaks from the kernel memory.
Signed-off-by: Ranganath V N <vnranganath.20@gmail.com>
---
Changes in v3:
- updated the commit messages and subject.
- corrected the code misisng ";" in v2
- Link to v2: https://lore.kernel.org/r/20251101-infoleak-v2-0-01a501d41c09@gmail.com
Changes in v2:
- removed memset(&t, 0, sizeof(t)) from previous patch.
- added the new patch series to address the issue.
- Link to v1: https://lore.kernel.org/r/20251031-infoleak-v1-1-9f7250ee33aa@gmail.com
Ranganath V N (2):
net: sched: act_connmark: initialize struct tc_ife to fix kernel leak
net: sched: act_ife: initialize struct tc_ife to fix KMSAN
kernel-infoleak
net/sched/act_connmark.c | 12 +++++++-----
net/sched/act_ife.c | 12 +++++++-----
2 files changed, 14 insertions(+), 10 deletions(-)
--
2.43.0
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH v3 0/2] net: sched: initialize struct tc_ife to fix kernel-infoleak
@ 2025-11-06 19:56 Ranganath V N
0 siblings, 0 replies; 2+ messages in thread
From: Ranganath V N @ 2025-11-06 19:56 UTC (permalink / raw)
To: davem, edumazet, horms, jhs, jiri, kuba, pabeni, xiyou.wangcong
Cc: vnranganath.20, david.hunter.linux, khalid, linux-kernel, netdev,
skhan, syzbot+0c85cae3350b7d486aee
This series addresses the uninitialization of the struct which has
2 btes of padding. And copying this uninitialized data to userspace
can leak info from kernel memory.
This sereies ensure all members and padding are cleared prior to
begin copied.
This change silences the KMSAN report and prevents potential information
leaks from the kernel memory.
Signed-off-by: Ranganath V N <vnranganath.20@gmail.com>
---
Changes in v3:
- updated the commit messages and subject.
- corrected the code misisng ";" in v2
- Link to v2: https://lore.kernel.org/r/20251101-infoleak-v2-0-01a501d41c09@gmail.com
Changes in v2:
- removed memset(&t, 0, sizeof(t)) from previous patch.
- added the new patch series to address the issue.
- Link to v1: https://lore.kernel.org/r/20251031-infoleak-v1-1-9f7250ee33aa@gmail.com
Ranganath V N (2):
net: sched: act_connmark: initialize struct tc_ife to fix kernel leak
net: sched: act_ife: initialize struct tc_ife to fix KMSAN
kernel-infoleak
net/sched/act_connmark.c | 12 +++++++-----
net/sched/act_ife.c | 12 +++++++-----
2 files changed, 14 insertions(+), 10 deletions(-)
--
2.43.0
^ permalink raw reply [flat|nested] 2+ messages in thread
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