Tejun Heo 4fda9f0e7c sched_ext: Guard scx_dsq_move() against NULL kit->dsq after failed iter_new ...

bpf_iter_scx_dsq_new() clears kit->dsq on failure and
bpf_iter_scx_dsq_{next,destroy}() guard against that. scx_dsq_move() doesn't -
it dereferences kit->dsq immediately, so a BPF program that calls
scx_bpf_dsq_move[_vtime]() after a failed iter_new oopses the kernel.

Return false if kit->dsq is NULL.

Fixes: 4c30f5ce4f ("sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()")
Cc: stable@vger.kernel.org # v6.12+
Reported-by: Chris Mason <clm@meta.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>

2026-04-24 14:31:35 -10:00

..

autogroup.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

autogroup.h

sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch]

2025-06-13 08:47:14 +02:00

build_policy.c

sched_ext: Move internal type and accessor definitions to ext_internal.h

2025-09-03 11:33:28 -10:00

build_utility.c

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

clock.c

sched/clock: Avoid false sharing for sched_clock_irqtime

2026-02-03 12:04:19 +01:00

completion.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

core_sched.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

core.c

Merge tag 'trace-rv-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2026-04-15 17:15:18 -07:00

cpuacct.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpudeadline.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpudeadline.h

sched/deadline: only set free_cpus for online runqueues

2025-10-16 11:13:49 +02:00

cpufreq_schedutil.c

cpufreq: Pass the policy to cpufreq_driver->adjust_perf()

2026-04-02 11:30:24 -05:00

cpufreq.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

cpupri.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpupri.h

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

cputime.c

Merge tag 'x86_paravirt_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-02-10 19:01:45 -08:00

deadline.c

Merge tag 'trace-rv-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2026-04-15 17:15:18 -07:00

debug.c

Merge branch 'sched/urgent' into sched/core, to resolve conflicts

2026-04-02 15:04:09 +02:00

ext_idle.c

sched_ext: Deny SCX kfuncs to non-SCX struct_ops programs

2026-04-20 07:57:29 -10:00

ext_idle.h

sched_ext: Deny SCX kfuncs to non-SCX struct_ops programs

2026-04-20 07:57:29 -10:00

ext_internal.h

sched_ext: Add verifier-time kfunc context filter

2026-04-10 07:54:06 -10:00

ext.c

sched_ext: Guard scx_dsq_move() against NULL kit->dsq after failed iter_new

2026-04-24 14:31:35 -10:00

ext.h

sched_ext: Add @kargs to scx_fork()

2026-03-06 07:58:02 -10:00

fair.c

Merge tag 'sched-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-04-14 13:33:36 -07:00

features.h

Merge tag 'sched-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-04-14 13:33:36 -07:00

idle.c

sched: idle: Consolidate the handling of two special cases

2026-03-16 20:29:47 +01:00

isolation.c

cgroup/cpuset: Call housekeeping_update() without holding cpus_read_lock

2026-02-23 10:46:49 -10:00

loadavg.c

Merge branch 'tip/sched/urgent'

2025-07-14 17:16:28 +02:00

Makefile

sched: Enable context analysis for core.c and fair.c

2026-01-05 16:43:36 +01:00

membarrier.c

rseq: Simplify the event notification

2025-11-04 08:30:09 +01:00

pelt.c

treewide: Update email address

2026-01-11 06:09:11 -10:00

pelt.h

sched/fair: Switch to task based throttle model

2025-09-03 10:03:14 +02:00

psi.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

rq-offsets.c

sched: Make migrate_{en,dis}able() inline

2025-09-25 09:57:16 +02:00

rt.c

sched/rt: Cleanup global RT bandwidth functions

2026-04-08 13:11:44 +02:00

sched-pelt.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

sched.h

Merge tag 'sched_ext-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

2026-04-15 10:54:24 -07:00

smp.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

stats.c

sched/smp: Use the SMP version of schedstats

2025-06-13 08:47:21 +02:00

stats.h

delayacct: add timestamp of delay max

2026-01-31 16:16:06 -08:00

stop_task.c

sched/core: Rework sched_class::wakeup_preempt() and rq_modified_*()

2025-12-17 10:53:25 +01:00

swait.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

syscalls.c

Merge tag 'v7.0-rc4' into sched/core, to pick up scheduler fixes

2026-03-17 07:14:42 +01:00

topology.c

sched/fair: Use sched_energy_enabled()

2026-04-03 14:23:41 +02:00

wait_bit.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

wait.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2025-07-30 17:14:01 -07:00